/*
* jquery.layout 1.3.0 - Release Candidate 17
*
* Copyright (c) 2010 
*   Fabrizio Balliano (http://www.fabrizioballiano.net)
*   Kevin Dalman (http://allpro.net)
*
* Dual licensed under the GPL (http://www.gnu.org/licenses/gpl.html)
* and MIT (http://www.opensource.org/licenses/mit-license.php) licenses.
*
* Docs: http://layout.jquery-dev.net/documentation.html
* Tips: http://layout.jquery-dev.net/tips.html
* Help: http://groups.google.com/group/jquery-ui-layout
*
* $Date: 2010-01-02 08:00:00 -0800 (Sat, 2 Jan 2010) $
* $Rev: 3017 $
* 
* NOTE: For best code readability, view this with a fixed-width font and tabs equal to 4-chars
*/
; (function($) {

    $.fn.layout = function(opts) {

        /*
        * ###########################
        *   WIDGET CONFIG & OPTIONS
        * ###########################
        */

        // LANGUAGE CUSTOMIZATION - will be *externally customizable* in next version
        var lang = {
            Pane: "Pane"
	, Open: "Open"	// eg: "Open Pane"
	, Close: "Close"
	, Resize: "Resize"
	, Slide: "Slide Open"
	, Pin: "Pin"
	, Unpin: "Un-Pin"
	, selector: "selector"
	, msgNoRoom: "Not enough room to show this pane."
	, errContainerMissing: "UI.Layout Initialization Error\n\nThe specified layout-container does not exist."
	, errContainerHeight: "UI.Layout Initialization Error\n\nThe layout-container \"CONTAINER\" has no height!"
	, errButton: "Error Adding Button \n\nInvalid "
        };

        // DEFAULT OPTIONS - CHANGE IF DESIRED
        var options = {
            name: ""			// Not required, but useful for buttons and used for the state-cookie
	, scrollToBookmarkOnLoad: true		// after creating a layout, scroll to bookmark in URL (.../page.htm#myBookmark)
	, resizeWithWindow: true		// bind thisLayout.resizeAll() to the window.resize event
	, resizeWithWindowDelay: 200			// delay calling resizeAll because makes window resizing very jerky
	, onresizeall_start: null		// CALLBACK when resizeAll() STARTS	- NOT pane-specific
	, onresizeall_end: null		// CALLBACK when resizeAll() ENDS	- NOT pane-specific
	, onload: null		// CALLBACK when Layout inits - after options initialized, but before elements
	, onunload: null		// CALLBACK when Layout is destroyed OR onWindowUnload
	, autoBindCustomButtons: false		// search for buttons with ui-layout-button class and auto-bind them
	, zIndex: null		// the PANE zIndex - resizers and masks will be +1
            //	PANE SETTINGS
	, defaults: { // default options for 'all panes' - will be overridden by 'per-pane settings'
	    applyDemoStyles: false		// NOTE: renamed from applyDefaultStyles for clarity
		, closable: true		// pane can open & close
		, resizable: true		// when open, pane can be resized 
		, slidable: true		// when closed, pane can 'slide open' over other panes - closes on mouse-out
		, initClosed: false		// true = init pane as 'closed'
		, initHidden: false 		// true = init pane as 'hidden' - no resizer-bar/spacing
	    //	SELECTORS
	    //,	paneSelector:			""			// MUST be pane-specific - jQuery selector for pane
		, contentSelector: ".ui-layout-content" // INNER div/element to auto-size so only it scrolls, not the entire pane!
		, contentIgnoreSelector: ".ui-layout-ignore"	// element(s) to 'ignore' when measuring 'content'
	    //	GENERIC ROOT-CLASSES - for auto-generated classNames
		, paneClass: "ui-layout-pane"	// border-Pane - default: 'ui-layout-pane'
		, resizerClass: "ui-layout-resizer"	// Resizer Bar		- default: 'ui-layout-resizer'
		, togglerClass: "ui-layout-toggler"	// Toggler Button	- default: 'ui-layout-toggler'
		, buttonClass: "ui-layout-button"	// CUSTOM Buttons	- default: 'ui-layout-button-toggle/-open/-close/-pin'
	    //	ELEMENT SIZE & SPACING
	    //,	size:					100			// MUST be pane-specific -initial size of pane
		, minSize: 0			// when manually resizing a pane
		, maxSize: 0			// ditto, 0 = no limit
		, spacing_open: 6			// space between pane and adjacent panes - when pane is 'open'
		, spacing_closed: 6			// ditto - when pane is 'closed'
		, togglerLength_open: 50			// Length = WIDTH of toggler button on north/south sides - HEIGHT on east/west sides
		, togglerLength_closed: 50			// 100% OR -1 means 'full height/width of resizer bar' - 0 means 'hidden'
		, togglerAlign_open: "center"	// top/left, bottom/right, center, OR...
		, togglerAlign_closed: "center"	// 1 => nn = offset from top/left, -1 => -nn == offset from bottom/right
		, togglerTip_open: lang.Close	// Toggler tool-tip (title)
		, togglerTip_closed: lang.Open	// ditto
	    //	RESIZING OPTIONS
		, resizerDblClickToggle: true		// 
		, noSelectionWhileDragging: true		// set $(document).disableSelection to avoid selecting text while dragging the resizer
		, autoResize: true		// IF size is 'auto' or a percentage, then recalc 'pixel size' whenever the layout resizes
		, autoReopen: true		// IF a pane was auto-closed due to noRoom, reopen it when there is room? False = leave it closed
		, resizerDragOpacity: 1			// option for ui.draggable
	    //,	resizerCursor:			""			// MUST be pane-specific - cursor when over resizer-bar
		, maskIframesOnResize: true		// true = all iframes OR = iframe-selector(s) - adds masking-div during resizing/dragging
		, resizeWhileDragging: false		// true = LIVE Resizing as resizer is dragged
	    //	TIPS & MESSAGES - also see lang object
		, noRoomToOpenTip: lang.msgNoRoom
		, resizerTip: lang.Resize	// Resizer tool-tip (title)
		, sliderTip: lang.Slide // resizer-bar triggers 'sliding' when pane is closed
		, sliderCursor: "pointer"	// cursor when resizer-bar will trigger 'sliding'
		, slideTrigger_open: "click"		// click, dblclick, mouseover
		, slideTrigger_close: "mouseout"	// click, mouseout
		, hideTogglerOnSlide: false		// when pane is slid-open, should the toggler show?
		, togglerContent_open: ""			// text or HTML to put INSIDE the toggler
		, togglerContent_closed: ""			// ditto
	    //	HOT-KEYS & MISC
		, showOverflowOnHover: false		// will bind allowOverflow() utility to pane.onMouseOver
		, trackMouseWhenSliding: false		// true = check isMouseOver to avoid premature slide-closed
		, enableCursorHotkey: true		// enabled 'cursor' hotkeys
	    //,	customHotkey:			""			// MUST be pane-specific - EITHER a charCode OR a character
		, customHotkeyModifier: "SHIFT"		// either 'SHIFT', 'CTRL' or 'CTRL+SHIFT' - NOT 'ALT'
	    //	PANE ANIMATION
	    //	NOTE: fxSss_open & fxSss_close options (eg: fxName_open) are auto-generated if not passed
		, fxName: "slide" 	// ('none' or blank), slide, drop, scale
		, fxSpeed: null		// slow, normal, fast, 200, nnn - if passed, will OVERRIDE fxSettings.duration
		, fxSettings: {}			// can be passed, eg: { easing: "easeOutBounce", duration: 1500 }
		, fxOpacityFix: true		// tries to fix opacity in IE to restore anti-aliasing after animation
	    //	CALLBACKS
		, triggerEventsOnLoad: true		// true = trigger onopen OR onclose callbacks when layout initializes
		, triggerEventsWhileDragging: true	// true = trigger onresize callback REPEATEDLY if resizeWhileDragging==true
		, onshow_start: null		// CALLBACK when pane STARTS to Show	- BEFORE onopen/onhide_start
		, onshow_end: null		// CALLBACK when pane ENDS being Shown	- AFTER  onopen/onhide_end
		, onhide_start: null		// CALLBACK when pane STARTS to Close	- BEFORE onclose_start
		, onhide_end: null		// CALLBACK when pane ENDS being Closed	- AFTER  onclose_end
		, onopen_start: null		// CALLBACK when pane STARTS to Open
		, onopen_end: null		// CALLBACK when pane ENDS being Opened
		, onclose_start: null		// CALLBACK when pane STARTS to Close
		, onclose_end: null		// CALLBACK when pane ENDS being Closed
		, onresize_start: null		// CALLBACK when pane STARTS to be ***MANUALLY*** Resized
		, onresize_end: null		// CALLBACK when pane ENDS being Resized ***FOR ANY REASON***
	}
	, north: {
	    paneSelector: ".ui-layout-north"
		, size: "auto"		// eg: "auto", "30%", 200
		, resizerCursor: "n-resize"	// custom = url(myCursor.cur)
		, customHotkey: ""			// EITHER a charCode OR a character
	}
	, south: {
	    paneSelector: ".ui-layout-south"
		, size: "auto"
		, resizerCursor: "s-resize"
		, customHotkey: ""
	}
	, east: {
	    paneSelector: ".ui-layout-east"
		, size: 200
		, resizerCursor: "e-resize"
		, customHotkey: ""
	}
	, west: {
	    paneSelector: ".ui-layout-west"
		, size: 200
		, resizerCursor: "w-resize"
		, customHotkey: ""
	}
	, center: {
	    paneSelector: ".ui-layout-center"
		, minWidth: 0
		, minHeight: 0
	}

            //	STATE MANAGMENT
	, useStateCookie: false		// Enable cookie-based state-management - can fine-tune with cookie.autoLoad/autoSave
	, cookie: {
	    name: ""			// If not specified, will use Layout.name, else just "Layout"
		, autoSave: true		// Save a state cookie when page exits?
		, autoLoad: true		// Load the state cookie when Layout inits?
	    //	Cookie Options
		, domain: ""
		, path: ""
		, expires: ""			// 'days' to keep cookie - leave blank for 'session cookie'
		, secure: false
	    //	List of options to save in the cookie - must be pane-specific
		, keys: "north.size,south.size,east.size,west.size," +
									"north.isClosed,south.isClosed,east.isClosed,west.isClosed," +
									"north.isHidden,south.isHidden,east.isHidden,west.isHidden"
	}
        };


        // PREDEFINED EFFECTS / DEFAULTS
        var effects = { // LIST *PREDEFINED EFFECTS* HERE, even if effect has no settings
            slide: {
                all: { duration: "fast"} // eg: duration: 1000, easing: "easeOutBounce"
		, north: { direction: "up" }
		, south: { direction: "down" }
		, east: { direction: "right" }
		, west: { direction: "left" }
            }
	, drop: {
	    all: { duration: "slow"} // eg: duration: 1000, easing: "easeOutQuint"
		, north: { direction: "up" }
		, south: { direction: "down" }
		, east: { direction: "right" }
		, west: { direction: "left" }
	}
	, scale: {
	    all: { duration: "fast" }
	}
        };


        // DYNAMIC DATA - READ-ONLY EXTERNALLY!
        var state = {
            // generate unique ID to identify layout - used to create global namespace for timers & events
            id: "layout" + new Date().getTime()
	, initialized: false
	, container: {}
	, north: {}
	, south: {}
	, east: {}
	, west: {}
	, center: {}
	, cookie: {} // State Managment data storage
        };


        // INTERNAL CONFIG DATA - DO NOT CHANGE THIS!
        var _c = {
            allPanes: "north,south,west,east,center"
	, borderPanes: "north,south,west,east"
	, altSide: {
	    north: "south"
		, south: "north"
		, east: "west"
		, west: "east"
	}
            //	CSS used in multiple places
	, hidden: { visibility: "hidden" }
	, visible: { visibility: "visible" }
            //	layout element settings
	, zIndex: { // set z-index values here
	    pane_normal: 1		// normal z-index for panes
		, resizer_normal: 2		// normal z-index for resizer-bars
		, iframe_mask: 2		// overlay div used to mask pane(s) during resizing
		, pane_sliding: 100		// applied to *BOTH* the pane and its resizer when a pane is 'slid open'
		, pane_animate: 1000	// applied to the pane when being animated - not applied to the resizer
		, resizer_drag: 10000	// applied to the CLONED resizer-bar when being 'dragged'
	}
	, resizers: {
	    cssReq: {
	        position: "absolute"
			, padding: 0
			, margin: 0
			, fontSize: "1px"
			, textAlign: "left"	// to counter-act "center" alignment!
			, overflow: "hidden" // keep toggler button from overflowing
	        //	SEE c.zIndex.resizer_normal
	    }
		, cssDemo: { // DEMO CSS - applied if: options.PANE.applyDemoStyles=true
		    background: "#DDD"
			, border: "none"
		}
	}
	, togglers: {
	    cssReq: {
	        position: "absolute"
			, display: "block"
			, padding: 0
			, margin: 0
			, overflow: "hidden"
			, textAlign: "center"
			, fontSize: "1px"
			, cursor: "pointer"
			, zIndex: 1
	    }
		, cssDemo: { // DEMO CSS - applied if: options.PANE.applyDemoStyles=true
		    background: "#AAA"
		}
	}
	, content: {
	    cssReq: {
	        position: "relative" /* contain floated or positioned elements */
	    }
		, cssDemo: {
		    overflow: "auto"
			, padding: "10px"
		}
		, cssDemoPane: { /* REMOVE scrolling from 'pane' when it has a content-div */
		    overflow: "hidden"
			, padding: 0
		}
	}
	, panes: { // defaults for ALL panes - overridden by 'per-pane settings' below
	    cssReq: {
	        position: "absolute"
			, margin: 0
	        //	SEE c.zIndex.pane_normal
	    }
		, cssDemo: {
		    padding: "10px"
			, background: "#FFF"
			, border: "1px solid #BBB"
			, overflow: "auto"
		}
	}
	, north: {
	    side: "Top"
		, sizeType: "Height"
		, dir: "horz"
		, cssReq: {
		    top: 0
			, bottom: "auto"
			, left: 0
			, right: 0
			, width: "auto"
		    //	height: 	DYNAMIC
		}
		, pins: []
	}
	, south: {
	    side: "Bottom"
		, sizeType: "Height"
		, dir: "horz"
		, cssReq: {
		    top: "auto"
			, bottom: 0
			, left: 0
			, right: 0
			, width: "auto"
		    //	height: 	DYNAMIC
		}
		, pins: []
	}
	, east: {
	    side: "Right"
		, sizeType: "Width"
		, dir: "vert"
		, cssReq: {
		    left: "auto"
			, right: 0
			, top: "auto" // DYNAMIC
			, bottom: "auto" // DYNAMIC
			, height: "auto"
		    //	width: 		DYNAMIC
		}
		, pins: []
	}
	, west: {
	    side: "Left"
		, sizeType: "Width"
		, dir: "vert"
		, cssReq: {
		    left: 0
			, right: "auto"
			, top: "auto" // DYNAMIC
			, bottom: "auto" // DYNAMIC
			, height: "auto"
		    //	width: 		DYNAMIC
		}
		, pins: []
	}
	, center: {
	    dir: "center"
		, cssReq: {
		    left: "auto" // DYNAMIC
			, right: "auto" // DYNAMIC
			, top: "auto" // DYNAMIC
			, bottom: "auto" // DYNAMIC
			, height: "auto"
			, width: "auto"
		}
	}
            //	internal tracking
	, timers: {}
        };


        /*
        * ###########################
        *  INTERNAL HELPER FUNCTIONS
        * ###########################
        */

        /**
        * min / max
        *
        * Aliases for Math methods to simplify coding
        */
        var min = function(x, y) { return Math.min(x, y); };
        var max = function(x, y) { return Math.max(x, y); };

        /**
        * _transformData
        *
        * Processes the options passed in and transforms them into the format used by layout()
        * Missing keys are added, and converts the data if passed in 'flat-format' (no sub-keys)
        * In flat-format, pane-specific-settings are prefixed like: north__optName  (2-underscores)
        * To update effects, options MUST use nested-keys format, with an effects key ???
        *
        * @callers	initOptions()
        * @params  JSON	d	Data/options passed by user - may be a single level or nested levels
        * @returns JSON		Creates a data struture that perfectly matches 'options', ready to be imported
        */
        var _transformData = function(d) {
            var json = { cookie: {}, defaults: { fxSettings: {} }, north: { fxSettings: {} }, south: { fxSettings: {} }, east: { fxSettings: {} }, west: { fxSettings: {} }, center: { fxSettings: {}} };
            d = d || {};
            if (d.effects || d.cookie || d.defaults || d.north || d.south || d.west || d.east || d.center)
                json = $.extend(true, json, d); // already in json format - add to base keys
            else
            // convert 'flat' to 'nest-keys' format - also handles 'empty' user-options
                $.each(d, function(key, val) {
                    a = key.split("__");
                    if (!a[1] || json[a[0]]) // check for invalid keys
                        json[a[1] ? a[0] : "defaults"][a[1] ? a[1] : a[0]] = val;
                });
            return json;
        };

        /**
        * _queue
        *
        * Set an INTERNAL callback to avoid simultaneous animation
        * Runs only if needed and only if all callbacks are not 'already set'
        * Called by open() and close() when isLayoutBusy=true
        *
        * @param String   action  Either 'open' or 'close'
        * @param String   pane    A valid border-pane name, eg 'west'
        * @param Boolean  param   Extra param for callback (optional)
        */
        var _queue = function(action, pane, param) {
            var tried = [];

            // if isLayoutBusy, then some pane must be 'moving'
            $.each(_c.borderPanes.split(","), function(i, p) {
                if (_c[p].isMoving) {
                    bindCallback(p); // TRY to bind a callback
                    return false; // BREAK
                }
            });

            // if pane does NOT have a callback, then add one, else follow the callback chain...
            function bindCallback(p) {
                var c = _c[p];
                if (!c.doCallback) {
                    c.doCallback = true;
                    c.callback = action + "," + pane + "," + (param ? 1 : 0);
                }
                else { // try to 'chain' this callback
                    tried.push(p);
                    var cbPane = c.callback.split(",")[1]; // 2nd param of callback is 'pane'
                    // ensure callback target NOT 'itself' and NOT 'target pane' and NOT already tried (avoid loop)
                    if (cbPane != p && cbPane != pane && !$.inArray(p, tried))
                        bindCallback(cbPane); // RECURSE
                }
            }
        };

        /**
        * _dequeue
        *
        * RUN the INTERNAL callback for this pane - if one exists
        *
        * @param String   action  Either 'open' or 'close'
        * @param String   pane    A valid border-pane name, eg 'west'
        * @param Boolean  param   Extra param for callback (optional)
        */
        var _dequeue = function(pane) {
            var c = _c[pane];

            // RESET flow-control flags
            _c.isLayoutBusy = false;
            delete c.isMoving;
            if (!c.doCallback || !c.callback) return;

            c.doCallback = false; // RESET logic flag

            // EXECUTE the callback
            var 
			cb = c.callback.split(",")
		, param = (cb[2] > 0 ? true : false)
		;
            if (cb[0] == "open")
                open(cb[1], param);
            else if (cb[0] == "close")
                close(cb[1], param);

            if (!c.doCallback) c.callback = null; // RESET - unless callback above enabled it again!
        };

        /**
        * _execCallback
        *
        * Executes a Callback function after a trigger event, like resize, open or close
        *
        * @param String  pane   This is passed only so we can pass the 'pane object' to the callback
        * @param String  v_fn  Accepts a function name, OR a comma-delimited array: [0]=function name, [1]=argument
        */
        var _execCallback = function(pane, v_fn) {
            if (!v_fn) return;
            var fn;
            try {
                if (typeof v_fn == "function")
                    fn = v_fn;
                else if (typeof v_fn != "string")
                    return;
                else if (v_fn.indexOf(",") > 0) {
                    // function name cannot contain a comma, so must be a function name AND a 'name' parameter
                    var 
					args = v_fn.split(",")
				, fn = eval(args[0])
				;
                    if (typeof fn == "function" && args.length > 1)
                        return fn(args[1]); // pass the argument parsed from 'list'
                }
                else // just the name of an external function?
                    fn = eval(v_fn);

                if (typeof fn == "function") {
                    if (pane && $Ps[pane])
                    // pass data: pane-name, pane-element, pane-state (copy), pane-options, and layout-name
                        return fn(pane, $Ps[pane], $.extend({}, state[pane]), options[pane], options.name);
                    else // must be a layout/container callback - pass suitable info
                        return fn(Instance, $.extend({}, state), options, options.name);
                }
            }
            catch (ex) { }
        };

        /**
        * _showInvisibly
        *
        * Returns hash container 'display' and 'visibility'
        */
        var _showInvisibly = function($E, force) {
            if (!$E) return {};
            if (!$E.jquery) $E = $($E);
            var CSS = {
                display: $E.css('display')
		, visibility: $E.css('visibility')
            };
            if (force || CSS.display == "none") { // only if not *already hidden*
                $E.css({ display: "block", visibility: "hidden" }); // show element 'invisibly' so can be measured
                return CSS;
            }
            else return {};
        };

        /**
        * _fixIframe
        *
        * cure iframe display issues in IE & other browsers
        */
        var _fixIframe = function(pane) {
            if (state.browser.mozilla) return; // skip FireFox - it auto-refreshes iframes onShow
            var $P = $Ps[pane];
            // if the 'pane' is an iframe, do it
            if (state[pane].tagName == "IFRAME")
                $P.css(_c.hidden).css(_c.visible);
            // ditto for any iframes INSIDE the pane
            $P.find('IFRAME').css(_c.hidden).css(_c.visible);
        };

        /**
        * _cssNum
        *
        * Returns the 'current CSS value' for an element - returns 0 if property does not exist
        *
        * @callers  Called by many methods
        * @param jQuery  $Elem  Must pass a jQuery object - first element is processed
        * @param String  property  The name of the CSS property, eg: top, width, etc.
        * @returns Variant  Usually is used to get an integer value for position (top, left) or size (height, width)
        */
        var _cssNum = function($E, prop) {
            if (!$E.jquery) $E = $($E);
            var CSS = _showInvisibly($E);
            var val = parseInt($.curCSS($E[0], prop, true), 10) || 0;
            $E.css(CSS); // RESET
            return val;
        };

        var _borderWidth = function(E, side) {
            if (E.jquery) E = E[0];
            var b = "border" + side.substr(0, 1).toUpperCase() + side.substr(1); // left => Left
            return $.curCSS(E, b + "Style", true) == "none" ? 0 : (parseInt($.curCSS(E, b + "Width", true), 10) || 0);
        };

        /**
        * cssW / cssH / cssSize / cssMinDims
        *
        * Contains logic to check boxModel & browser, and return the correct width/height for the current browser/doctype
        *
        * @callers  initPanes(), sizeMidPanes(), initHandles(), sizeHandles()
        * @param Variant  el  Can accept a 'pane' (east, west, etc) OR a DOM object OR a jQuery object
        * @param Integer  outerWidth/outerHeight  (optional) Can pass a width, allowing calculations BEFORE element is resized
        * @returns Integer  Returns the innerWidth/Height of the elem by subtracting padding and borders
        *
        * @TODO  May need additional logic for other browser/doctype variations? Maybe use more jQuery methods?
        */
        var cssW = function(el, outerWidth) {
            var 
			str = typeof el == "string"
		, $E = str ? $Ps[el] : $(el)
		;
            if (isNaN(outerWidth)) // not specified
                outerWidth = str ? getPaneSize(el) : $E.outerWidth();

            // a 'calculated' outerHeight can be passed so borders and/or padding are removed if needed
            if (outerWidth <= 0) return 0;

            if (!state.browser.boxModel) return outerWidth;

            // strip border and padding from outerWidth to get CSS Width
            var W = outerWidth
			- _borderWidth($E, "Left")
			- _borderWidth($E, "Right")
			- _cssNum($E, "paddingLeft")
			- _cssNum($E, "paddingRight")
		;

            return W > 0 ? W : 0;
        };

        var cssH = function(el, outerHeight) {
            var 
			str = typeof el == "string"
		, $E = str ? $Ps[el] : $(el)
		;
            if (isNaN(outerHeight)) // not specified
                outerHeight = str ? getPaneSize(el) : $E.outerHeight();

            // a 'calculated' outerHeight can be passed so borders and/or padding are removed if needed
            if (outerHeight <= 0) return 0;

            if (!state.browser.boxModel) return outerHeight;

            // strip border and padding from outerHeight to get CSS Height
            var H = outerHeight
			- _borderWidth($E, "Top")
			- _borderWidth($E, "Bottom")
			- _cssNum($E, "paddingTop")
			- _cssNum($E, "paddingBottom")
		;

            return H > 0 ? H : 0;
        };

        var cssSize = function(pane, outerSize) {
            if (_c[pane].dir == "horz") // pane = north or south
                return cssH(pane, outerSize);
            else // pane = east or west
                return cssW(pane, outerSize);
        };

        var cssMinDims = function(pane) {
            // minWidth/Height means CSS width/height = 1px
            var 
			dir = _c[pane].dir
		, d = {
		    minWidth: 1001 - cssW(pane, 1000)
			, minHeight: 1001 - cssH(pane, 1000)
		}
		;
            if (dir == "horz") d.minSize = d.minHeight;
            if (dir == "vert") d.minSize = d.minWidth;
            return d;
        };

        // TODO: see if these methods can be made more useful...

        var setOuterWidth = function(el, outerWidth, autoHide) {
            var $E = el, w;
            if (typeof el == "string") $E = $Ps[el]; // west
            else if (!el.jquery) $E = $(el);
            w = cssW($E, outerWidth);
            $E.css({ width: w });
            if (w > 0) {
                if (autoHide && $E.data('autoHidden') && $E.innerHeight() > 0) {
                    $E.show().data('autoHidden', false);
                    if (!state.browser.mozilla) // FireFox refreshes iframes - IE doesn't
                    // make hidden, then visible to 'refresh' display after animation
                        $E.css(_c.hidden).css(_c.visible);
                }
            }
            else if (autoHide && !$E.data('autoHidden'))
                $E.hide().data('autoHidden', true);
        };

        var setOuterHeight = function(el, outerHeight, autoHide) {
            var $E = el;
            if (typeof el == "string") $E = $Ps[el]; // west
            else if (!el.jquery) $E = $(el);
            h = cssH($E, outerHeight);
            $E.css({ height: h });
            if (h > 0) {
                if (autoHide && $E.data('autoHidden') && $E.innerWidth() > 0) {
                    $E.show().data('autoHidden', false);
                    if (!state.browser.mozilla) // FireFox refreshes iframes - IE doesn't
                        $E.css(_c.hidden).css(_c.visible);
                }
            }
            else if (autoHide && !$E.data('autoHidden'))
                $E.hide().data('autoHidden', true);
        };

        var setOuterSize = function(el, outerSize, autoHide) {
            if (_c[pane].dir == "horz") // pane = north or south
                setOuterHeight(el, outerSize, autoHide);
            else // pane = east or west
                setOuterWidth(el, outerSize, autoHide);
        };


        /**
        * _parseSize
        *
        * Converts any 'size' params to a pixel/integer size, if not already
        * If 'auto' or a decimal/percentage is passed as 'size', a pixel-size is calculated
        *
        * @returns Integer
        */
        var _parseSize = function(pane, size, dir) {
            if (!dir) dir = _c[pane].dir;

            if (typeof size == 'string' && size.indexOf('%') > 0)
                size = parseInt(size) / 100; // convert % to decimal

            if (size === 0)
                return 0;
            else if (size >= 1)
                return parseInt(size, 10);
            else if (size > 0) { // percentage, eg: .25
                var o = options, avail;
                if (dir == "horz") // north or south or center.minHeight
                    avail = sC.innerHeight - ($Ps.north ? o.north.spacing_open : 0) - ($Ps.south ? o.south.spacing_open : 0);
                else if (dir == "vert") // east or west or center.minWidth
                    avail = sC.innerWidth - ($Ps.west ? o.west.spacing_open : 0) - ($Ps.east ? o.east.spacing_open : 0);
                return Math.floor(avail * size);
            }
            else if (pane == "center")
                return 0;
            else { // size < 0 || size=='auto' || size==Missing || size==Invalid
                // auto-size the pane
                var 
				$P = $Ps[pane]
			, dim = (dir == "horz" ? "height" : "width")
			, vis = _showInvisibly($P) // show pane invisibly if hidden
			, s = $P.css(dim); // SAVE current size
                ;
                $P.css(dim, "auto");
                size = (dim == "height") ? $P.outerHeight() : $P.outerWidth(); // MEASURE
                $P.css(dim, s).css(vis); // RESET size & visibility
                return size;
            }
        };

        /**
        * getPaneSize
        *
        * Calculates the current 'size' (width or height) of a border-pane - optionally with 'pane spacing' added
        *
        * @returns Integer  Returns EITHER Width for east/west panes OR Height for north/south panes - adjusted for boxModel & browser
        */
        var getPaneSize = function(pane, inclSpace) {
            var 
			$P = $Ps[pane]
		, o = options[pane]
		, s = state[pane]
		, oSp = (inclSpace ? o.spacing_open : 0)
		, cSp = (inclSpace ? o.spacing_closed : 0)
		;
            if (!$P || s.isHidden)
                return 0;
            else if (s.isClosed || (s.isSliding && inclSpace))
                return cSp;
            else if (_c[pane].dir == "horz")
                return $P.outerHeight() + oSp;
            else // dir == "vert"
                return $P.outerWidth() + oSp;
        };

        /**
        * setSizeLimits
        */
        var setSizeLimits = function(pane, slide) {
            var 
			o = options[pane]
		, s = state[pane]
		, c = _c[pane]
		, dir = c.dir
		, side = c.side.toLowerCase()
		, type = c.sizeType.toLowerCase()
		, isSliding = (slide != undefined ? slide : s.isSliding) // only open() passes 'slide' param
		, $P = $Ps[pane]
		, paneSpacing = o.spacing_open
            //	measure the pane on the *opposite side* from this pane
		, altPane = _c.altSide[pane]
		, altS = state[altPane]
		, $altP = $Ps[altPane]
		, altPaneSize = (!$altP || altS.isVisible === false || altS.isSliding ? 0 : (dir == "horz" ? $altP.outerHeight() : $altP.outerWidth()))
		, altPaneSpacing = ((!$altP || altS.isHidden ? 0 : options[altPane][altS.isClosed !== false ? "spacing_closed" : "spacing_open"]) || 0)
            //	limitSize prevents this pane from 'overlapping' opposite pane
		, containerSize = (dir == "horz" ? sC.innerHeight : sC.innerWidth)
		, minCenterSize = options.center[dir == "horz" ? "minHeight" : "minWidth"]
            //	if pane is 'sliding', then ignore center and alt-pane sizes - because 'overlays' them
		, limitSize = (containerSize - paneSpacing - (isSliding ? 0 : (_parseSize("center", minCenterSize, dir) + altPaneSize + altPaneSpacing)))
		, minSize = s.minSize = max(_parseSize(pane, o.minSize), cssMinDims(pane).minSize)
		, maxSize = s.maxSize = min((o.maxSize ? _parseSize(pane, o.maxSize) : 100000), limitSize)
		, r = s.resizerPosition = {} // used to set resizing limits
		, top = sC.insetTop
		, left = sC.insetLeft
		, W = sC.innerWidth
		, H = sC.innerHeight
		, rW = o.spacing_open // subtract resizer-width to get top/left position for south/east
		;
            switch (pane) {
                case "north": r.min = top + minSize;
                    r.max = top + maxSize;
                    break;
                case "west": r.min = left + minSize;
                    r.max = left + maxSize;
                    break;
                case "south": r.min = top + H - maxSize - rW;
                    r.max = top + H - minSize - rW;
                    break;
                case "east": r.min = left + W - maxSize - rW;
                    r.max = left + W - minSize - rW;
                    break;
            };
        };

        /**
        * calcNewCenterPaneDims
        *
        * Returns data for setting the size/position of center pane. Also used to set Height for east/west panes
        *
        * @returns JSON  Returns a hash of all dimensions: top, bottom, left, right, (outer) width and (outer) height
        */
        var calcNewCenterPaneDims = function() {
            var d = {
                top: getPaneSize("north", true) // true = include 'spacing' value for pane
		, bottom: getPaneSize("south", true)
		, left: getPaneSize("west", true)
		, right: getPaneSize("east", true)
		, width: 0
		, height: 0
            };

            with (d) {
                // calc center-pane's outer dimensions
                width = sC.innerWidth - left - right;  // outerWidth
                height = sC.innerHeight - bottom - top; // outerHeight
                // add the 'container border/padding' to get final positions relative to the container
                top += sC.insetTop;
                bottom += sC.insetBottom;
                left += sC.insetLeft;
                right += sC.insetRight;
            }

            return d;
        };


        /**
        * getElemDims
        *
        * Returns data for setting size of an element (container or a pane).
        *
        * @callers  create(), onWindowResize() for container, plus others for pane
        * @returns JSON  Returns a hash of all dimensions: top, bottom, left, right, outerWidth, innerHeight, etc
        */
        var getElemDims = function($E) {
            var 
			d = {}			// dimensions hash
		, x = d.css = {}	// CSS hash
		, i = {}			// TEMP insets
		, b, p				// TEMP border, padding
		, off = $E.offset()
		;
            d.offsetLeft = off.left;
            d.offsetTop = off.top;

            $.each("Left,Right,Top,Bottom".split(","), function(idx, e) {
                b = x["border" + e] = _borderWidth($E, e);
                p = x["padding" + e] = _cssNum($E, "padding" + e);
                i[e] = b + p; // total offset of content from outer side
                d["inset" + e] = p;
                /* WRONG ???
                // if BOX MODEL, then 'position' = PADDING (ignore borderWidth)
                if ($E == $Container)
                d["inset"+ e] = (state.browser.boxModel ? p : 0); 
                */
            });

            d.offsetWidth = $E.innerWidth(true); // true=include Padding
            d.offsetHeight = $E.innerHeight(true);
            d.innerWidth = d.outerWidth = $E.outerWidth() - i.Left - i.Right;
            d.innerHeight = d.outerHeight = $E.outerHeight() - i.Top - i.Bottom;
            /* WRONG ???
            d.innerWidth	= d.outerWidth  = $E.outerWidth();
            d.innerHeight	= d.outerHeight = $E.outerHeight();
            if (!state.browser.boxModel) {   
            d.innerWidth  -= (i.Left + i.Right);
            d.innerHeight -= (i.Top  + i.Bottom);
            }
            */

            // TESTING
            x.width = $E.width();
            x.height = $E.height();

            return d;
        };

        var getElemCSS = function($E, list) {
            var 
			CSS = {}
		, style = $E[0].style
		, props = list.split(",")
		, sides = "Top,Bottom,Left,Right".split(",")
		, attrs = "Color,Style,Width".split(",")
		, p, s, a, i, j, k
		;
            for (i = 0; i < props.length; i++) {
                p = props[i];
                if ("border|padding|margin".indexOf(p) >= 0)
                    for (j = 0; j < 4; j++) {
                    s = sides[j];
                    if (p == "border")
                        for (k = 0; k < 3; k++) {
                        a = attrs[k];
                        CSS[p + s + a] = style[p + s + a];
                    }
                    else
                        CSS[p + s] = style[p + s];
                }
                else
                    CSS[p] = style[p];
            };
            return CSS
        };


        var setTimer = function(name, fn, ms) {
            clearTimer(name); // clear previous timer if exists
            _c.timers[name] = setTimeout(fn, ms);
        };

        var clearTimer = function(name) {
            if (_c.timers[name]) {
                clearTimeout(_c.timers[name]);
                delete _c.timers[name];
            }
        };


        var getHoverClasses = function(el, allStates) {
            var 
			$El = $(el)
		, type = $El.data("layoutRole")
		, pane = $El.data("layoutEdge")
		, o = options[pane]
		, root = o[type + "Class"]
		, _pane = "-" + pane // eg: "-west"
		, _open = "-open"
		, _closed = "-closed"
		, _slide = "-sliding"
		, _hover = "-hover " // NOTE the trailing space
		, _state = $El.hasClass(root + _closed) ? _closed : _open
		, _alt = _state == _closed ? _open : _closed
		, classes = (root + _hover) + (root + _pane + _hover) + (root + _state + _hover) + (root + _pane + _state + _hover)
		;
            if (allStates) // when 'removing' classes, also remove alternate-state classes
                classes += (root + _alt + _hover) + (root + _pane + _alt + _hover);

            if (type == "resizer" && $El.hasClass(root + _slide))
                classes += (root + _slide + _hover) + (root + _pane + _slide + _hover);

            return $.trim(classes);
        };
        var addHover = function(evt, el) {
            var e = el || this;
            $(e).addClass(getHoverClasses(e));
            //if (evt && $(e).data("layoutRole") == "toggler") evt.stopPropagation();
        };
        var removeHover = function(evt, el) {
            var e = el || this;
            $(e).removeClass(getHoverClasses(e, true));
        };

        /*
        * ###########################
        *   INITIALIZATION METHODS
        * ###########################
        */

        /**
        * create
        *
        * Initialize the layout - called automatically whenever an instance of layout is created
        *
        * @callers  NEVER explicity called
        * @returns  An object pointer to the instance created
        */
        var create = function() {
            // initialize config/options
            initOptions();
            var o = options;

            // onload will CANCEL resizing if returns false
            if (false === _execCallback(null, o.onload)) return false;

            // update options with saved state, if option enabled
            if (o.useStateCookie && o.cookie.autoLoad)
                loadCookie(); // Update options from state-cookie

            // set environment - can update code here if $.browser is phased out
            state.browser = {
                mozilla: $.browser.mozilla
		, msie: $.browser.msie
		, isIE6: $.browser.msie && $.browser.version == 6
		, boxModel: $.support.boxModel
                //,	version:	$.browser.version - not used
            };

            // initialize all layout elements
            initContainer(); // set CSS as needed and init state.container dimensions
            initPanes(); 	// size & position all panes - calls initHandles()
            //initHandles();	// create and position all resize bars & togglers buttons
            initResizable(); // activate resizing on all panes where resizable=true
            sizeContent("all"); // AFTER panes & handles have been initialized, size 'content' divs

            if (o.scrollToBookmarkOnLoad)
                with (self.location) if (hash) replace(hash); // scrollTo Bookmark

            // search for and bind custom-buttons
            if (o.autoBindCustomButtons) initButtons();

            // bind hotkey function - keyDown - if required
            initHotkeys();
            // track mouse position so we can use it anytime we need it
            initMouseTracking();

            // bind resizeAll() for 'this layout instance' to window.resize event
            if (o.resizeWithWindow && !$Container.data("layoutRole")) // skip if 'nested' inside a pane
                $(window).bind("resize." + sID, windowResize);

            // bind window.onunload
            $(window).bind("unload." + sID, unload);

            state.initialized = true;
        };

        var windowResize = function() {
            // resizing use a delay because the resize event fires repeatly - except in FF, but delay anyway
            setTimer("winResize", resizeAll, Number(options.resizeWithWindowDelay) || 0);
            //self.location = '#count='+ (window.counter ? ++window.counter : (window.counter=1)); // DEBUG
        };

        var unload = function() {
            var o = options;
            state.cookie = getState(); // save state in case onunload has custom state-management
            if (o.useStateCookie && o.cookie.autoSave) saveCookie();

            _execCallback(null, o.onunload);
        };

        /**
        *	initMouseTracking / trackMouse / isMouseOver
        *
        *	Bound to document.mousemove - updates window.mouseCoords.X/Y
        *
        *	TODO: use ui.isOver(y, x, top, left, height, width)
        */
        var initMouseTracking = function() {
            if (!window.mouseCoords) { // only need 1 mouse tracker!
                window.mouseCoords = { X: 0, Y: 0 }; // init
                $(document).bind("mousemove." + sID, trackMouse);
            }
        };
        var trackMouse = function(evt) {
            var m = window.mouseCoords;
            m.X = evt.pageX;
            m.Y = evt.pageY;
        };
        var isMouseOver = function(el) {
            var $E = (typeof (el == "string") ? $Ps[el] : $(el));
            if (!$E.length) return false;
            var 
			_ = this
		, d = $E.offset()
		, T = d.top
		, L = d.left
		, R = L + $E.outerWidth()
		, B = T + $E.outerHeight()
		, m = window.mouseCoords
		;
            return ((m.X >= L && m.X <= R) && (m.Y >= T && m.Y <= B));
        };


        /**
        * initContainer
        *
        * Validate and initialize container CSS and events
        *
        * @callers  create()
        */
        var initContainer = function() {
            sC.tagName = $Container.attr("tagName");
            var 
			isFullPage = (sC.tagName == "BODY")
		, $C = $Container // alias
		, props = "position,margin,padding,border"
		, CSS = {}
		;

            // the layoutContainer key is used to store the unique layoutID
            $C
			.data("layoutContainer", sID)		// unique identifier for internal use
			.data("layoutName", options.name)	// add user's layout-name - even if blank!
		;

            // SAVE original container CSS for use in destroy()
            if (!$C.data("layoutCSS")) {
                // handle props like overflow different for BODY & HTML - has 'system default' values
                if (isFullPage) {
                    CSS = $.extend(getElemCSS($C, props), {
                        height: $C.css("height")
				, overflow: $C.css("overflow")
				, overflowX: $C.css("overflowX")
				, overflowY: $C.css("overflowY")
                    });
                    // ALSO SAVE <HTML> CSS
                    var $H = $("html");
                    $H.data("layoutCSS", {
                        height: "auto" // FF would return a fixed px-size!
				, overflow: $H.css("overflow")
				, overflowX: $H.css("overflowX")
				, overflowY: $H.css("overflowY")
                    });
                }
                else // handle props normally for non-body elements
                    CSS = getElemCSS($C, props + ",top,bottom,left,right,width,height,overflow,overflowX,overflowY");

                $C.data("layoutCSS", CSS);
            }

            try { // format html/body if this is a full page layout
                if (isFullPage) {
                    $("html").css({
                        height: "100%"
				, overflow: "hidden"
				, overflowX: "hidden"
				, overflowY: "hidden"
                    });
                    $("body").css({
                        position: "relative"
				, height: "100%"
				, overflow: "hidden"
				, overflowX: "hidden"
				, overflowY: "hidden"
				, margin: 0
				, padding: 0		// TODO: test whether body-padding could be handled?
				, border: "none"	// a body-border creates problems because it cannot be measured!
                    });
                }
                else { // set required CSS for overflow and position
                    var 
					CSS = { overflow: "hidden"} // make sure container will not 'scroll'
				, p = $C.css("position")
				, h = $C.css("height")
				;
                    // if this is a NESTED layout, then container/outer-pane ALREADY has position and height
                    if (!$C.data("layoutRole")) {
                        if (!p || "fixed,absolute,relative".indexOf(p) < 0)
                            CSS.position = "relative"; // container MUST have a 'position'
                        if (!h || h == "auto")
                            CSS.height = "100%"; // container MUST have a 'height'
                    }
                    $C.css(CSS);
                    if ($C.is(":visible") && $C.innerHeight() < 2)
                        alert(lang.errContainerHeight.replace(/CONTAINER/, $C[0].tagName + ($C.selector || '')));
                }
            } catch (ex) { }

            // set current layout-container dimensions
            $.extend(state.container, getElemDims($C), true);
        };

        /**
        * initHotkeys
        *
        * Bind layout hotkeys - if options enabled
        *
        * @callers  create()
        */
        var initHotkeys = function() {
            // bind keyDown to capture hotkeys, if option enabled for ANY pane
            $.each(_c.borderPanes.split(","), function(i, pane) {
                var o = options[pane];
                if (o.enableCursorHotkey || o.customHotkey) {
                    $(document).bind("keydown." + sID, keyDown); // only need to bind this ONCE
                    return false; // BREAK - binding was done
                }
            });
        };

        /**
        * initOptions
        *
        * Build final OPTIONS data
        *
        * @callers  create()
        */
        var initOptions = function() {
            // simplify logic by making sure passed 'opts' var has basic keys
            opts = _transformData(opts);

            // TODO: create a compatibility add-on for new UI widget that will transform old option syntax
            var newOpts = {
                applyDefaultStyles: "applyDemoStyles"
            };
            renameOpts(opts.defaults);
            $.each(_c.allPanes.split(","), function(i, pane) {
                renameOpts(opts[pane]);
            });

            // update default effects, if case user passed key
            if (opts.effects) {
                $.extend(effects, opts.effects);
                delete opts.effects;
            }
            $.extend(options.cookie, opts.cookie);

            // see if any 'global options' were specified
            var globals = "name,zIndex,scrollToBookmarkOnLoad,resizeWithWindow,resizeWithWindowDelay," +
			"onresizeall,onresizeall_start,onresizeall_end,onload,onunload,autoBindCustomButtons,useStateCookie";
            $.each(globals.split(","), function(i, key) {
                if (opts[key] !== undefined)
                    options[key] = opts[key];
                else if (opts.defaults[key] !== undefined) {
                    options[key] = opts.defaults[key];
                    delete opts.defaults[key];
                }
            });

            // remove any 'defaults' that MUST be set 'per-pane'
            $.each("paneSelector,resizerCursor,customHotkey".split(","),
			function(i, key) { delete opts.defaults[key]; } // is OK if key does not exist
		);

            // now update options.defaults
            $.extend(true, options.defaults, opts.defaults);

            // merge config for 'center-pane' - border-panes handled in the loop below
            _c.center = $.extend(true, {}, _c.panes, _c.center);
            // update config.zIndex values if zIndex option specified
            var z = options.zIndex;
            if (z === 0 || z > 0) {
                _c.zIndex.pane_normal = z;
                _c.zIndex.resizer_normal = z + 1;
                _c.zIndex.iframe_mask = z + 1;
            }

            // merge options for 'center-pane' - border-panes handled in the loop below
            $.extend(options.center, opts.center);
            // Most 'default options' do not apply to 'center', so add only those that DO
            var o_Center = $.extend(true, {}, options.defaults, opts.defaults, options.center); // TEMP data
            $.each("paneClass,contentSelector,contentIgnoreSelector,applyDemoStyles,showOverflowOnHover,triggerEventsOnLoad".split(","),
			function(i, key) { options.center[key] = o_Center[key]; }
		);

            var o, defs = options.defaults;

            // create a COMPLETE set of options for EACH border-pane
            $.each(_c.borderPanes.split(","), function(i, pane) {

                // apply 'pane-defaults' to CONFIG.[PANE]
                _c[pane] = $.extend(true, {}, _c.panes, _c[pane]);

                // apply 'pane-defaults' +  user-options to OPTIONS.PANE
                o = options[pane] = $.extend(true, {}, options.defaults, options[pane], opts.defaults, opts[pane]);

                // make sure we have base-classes
                if (!o.paneClass) o.paneClass = "ui-layout-pane";
                if (!o.resizerClass) o.resizerClass = "ui-layout-resizer";
                if (!o.togglerClass) o.togglerClass = "ui-layout-toggler";

                // create FINAL fx options for each pane, ie: options.PANE.fxName/fxSpeed/fxSettings[_open|_close]
                $.each(["_open", "_close", ""], function(i, n) {
                    var 
					sName = "fxName" + n
				, sSpeed = "fxSpeed" + n
				, sSettings = "fxSettings" + n
				;
                    // recalculate fxName according to specificity rules
                    o[sName] =
					opts[pane][sName]		// opts.west.fxName_open
				|| opts[pane].fxName		// opts.west.fxName
				|| opts.defaults[sName]	// opts.defaults.fxName_open
				|| opts.defaults.fxName	// opts.defaults.fxName
				|| o[sName]				// options.west.fxName_open
				|| o.fxName				// options.west.fxName
				|| defs[sName]				// options.defaults.fxName_open
				|| defs.fxName				// options.defaults.fxName
				|| "none"
				;
                    // validate fxName to be sure is a valid effect
                    var fxName = o[sName];
                    if (fxName == "none" || !$.effects || !$.effects[fxName] || (!effects[fxName] && !o[sSettings] && !o.fxSettings))
                        fxName = o[sName] = "none"; // effect not loaded, OR undefined FX AND fxSettings not passed
                    // set vars for effects subkeys to simplify logic
                    var 
					fx = effects[fxName] || {} // effects.slide
				, fx_all = fx.all || {} // effects.slide.all
				, fx_pane = fx[pane] || {} // effects.slide.west
				;
                    // RECREATE the fxSettings[_open|_close] keys using specificity rules
                    o[sSettings] = $.extend(
					{}
				, fx_all						// effects.slide.all
				, fx_pane						// effects.slide.west
				, defs.fxSettings || {}		// options.defaults.fxSettings
				, defs[sSettings] || {}		// options.defaults.fxSettings_open
				, o.fxSettings				// options.west.fxSettings
				, o[sSettings]				// options.west.fxSettings_open
				, opts.defaults.fxSettings	// opts.defaults.fxSettings
				, opts.defaults[sSettings] || {} // opts.defaults.fxSettings_open
				, opts[pane].fxSettings		// opts.west.fxSettings
				, opts[pane][sSettings] || {}	// opts.west.fxSettings_open
				);
                    // recalculate fxSpeed according to specificity rules
                    o[sSpeed] =
					opts[pane][sSpeed]		// opts.west.fxSpeed_open
				|| opts[pane].fxSpeed		// opts.west.fxSpeed (pane-default)
				|| opts.defaults[sSpeed]	// opts.defaults.fxSpeed_open
				|| opts.defaults.fxSpeed	// opts.defaults.fxSpeed
				|| o[sSpeed]				// options.west.fxSpeed_open
				|| o[sSettings].duration	// options.west.fxSettings_open.duration
				|| o.fxSpeed				// options.west.fxSpeed
				|| o.fxSettings.duration	// options.west.fxSettings.duration
				|| defs.fxSpeed			// options.defaults.fxSpeed
				|| defs.fxSettings.duration// options.defaults.fxSettings.duration
				|| fx_pane.duration		// effects.slide.west.duration
				|| fx_all.duration			// effects.slide.all.duration
				|| "normal"				// DEFAULT
				;
                });

            });

            function renameOpts(O) {
                for (var key in newOpts) {
                    if (O[key] != undefined) {
                        O[newOpts[key]] = O[key];
                        delete O[key];
                    }
                }
            }
        };

        /**
        * initPanes
        *
        * Initialize module objects, styling, size and position for all panes
        *
        * @callers  create()
        */
        var initPanes = function() {
            // NOTE: do north & south FIRST so we can measure their height - do center LAST
            $.each(_c.allPanes.split(","), function(idx, pane) {
                var 
				o = options[pane]
			, s = state[pane]
			, c = _c[pane]
			, fx = s.fx
			, dir = c.dir
			, sel = o.paneSelector
			, spacing = o.spacing_open || 0
			, isCenter = (pane == "center")
			, CSS = {}
			, $P, $C
			, size, minSize, maxSize
			;
                $Cs[pane] = false; // init

                if (sel.substr(0, 1) === "#") // ID selector
                // NOTE: elements selected 'by ID' DO NOT have to be 'children'
                    $P = $Ps[pane] = $Container.find(sel + ":first");
                else { // class or other selector
                    $P = $Ps[pane] = $Container.children(sel + ":first");
                    // look for the pane nested inside a 'form' element
                    if (!$P.length) $P = $Ps[pane] = $Container.children("form:first").children(sel + ":first");
                }

                if (!$P.length) {
                    $Ps[pane] = false; // logic
                    return true; // SKIP to next
                }

                // SAVE original Pane CSS
                if (!$P.data("layoutCSS")) {
                    var props = "position,top,left,bottom,right,width,height,overflow,zIndex,display,backgroundColor,padding,margin,border";
                    $P.data("layoutCSS", getElemCSS($P, props));
                }

                // add basic classes & attributes
                $P
				.data("layoutName", options.name)	// add user's layout-name - even if blank!
				.data("layoutRole", "pane")
				.data("layoutEdge", pane)
				.css(c.cssReq).css("zIndex", _c.zIndex.pane_normal)
				.css(o.applyDemoStyles ? c.cssDemo : {}) // demo styles
				.addClass(o.paneClass + " " + o.paneClass + "-" + pane) // default = "ui-layout-pane ui-layout-pane-west" - may be a dupe of 'paneSelector'
				.bind("mouseenter." + sID, addHover)
				.bind("mouseleave." + sID, removeHover)
			;

                // see if this pane has a 'scrolling-content element'
                if (o.contentSelector) {
                    $C = $Cs[pane] = $P.children(o.contentSelector + ":first"); // match 1-element only
                    if (!$C.length)
                        $Cs[pane] = false;
                    else {
                        $C.css(_c.content.cssReq);
                        if (o.applyDemoStyles) {
                            $C.css(_c.content.cssDemo); // add padding & overflow: auto to content-div
                            $P.css(_c.content.cssDemoPane); // REMOVE padding/scrolling from pane
                        }
                        // sizeContent() is called later
                    }
                }

                if (!isCenter) {
                    // call _parseSize AFTER applying pane classes & styles - but before making visible (if hidden)
                    // if o.size is auto or not valid, then MEASURE the pane and use that as it's 'size'
                    size = s.size = _parseSize(pane, o.size);
                    minSize = _parseSize(pane, o.minSize) || 1;
                    maxSize = _parseSize(pane, o.maxSize) || 100000;
                    if (size > 0) size = max(min(size, maxSize), minSize);
                }

                // init pane-logic vars
                s.tagName = $P.attr("tagName");
                s.noRoom = false; // true = pane 'automatically' hidden due to insufficient room - will unhide automatically
                s.isVisible = true;  // false = pane is invisible - closed OR hidden - simplify logic
                if (!isCenter) {
                    s.isClosed = false; // true = pane is closed
                    s.isSliding = false; // true = pane is currently open by 'sliding' over adjacent panes
                    s.isResizing = false; // true = pane is in process of being resized
                    s.isHidden = false; // true = pane is hidden - no spacing, resizer or toggler is visible!
                }

                // set css-position to account for container borders & padding
                switch (pane) {
                    case "north": CSS.top = sC.insetTop;
                        CSS.left = sC.insetLeft;
                        CSS.right = sC.insetRight;
                        break;
                    case "south": CSS.bottom = sC.insetBottom;
                        CSS.left = sC.insetLeft;
                        CSS.right = sC.insetRight;
                        break;
                    case "west": CSS.left = sC.insetLeft; // top, bottom & height set by sizeMidPanes()
                        break;
                    case "east": CSS.right = sC.insetRight; // ditto
                        break;
                    case "center": // top, left, width & height set by sizeMidPanes()
                }

                if (dir == "horz") // north or south pane
                    CSS.height = max(1, cssH(pane, size));
                else if (dir == "vert") // east or west pane
                    CSS.width = max(1, cssW(pane, size));
                //else if (isCenter) {}

                $P.css(CSS); // apply size -- top, bottom & height will be set by sizeMidPanes
                if (dir != "horz") sizeMidPanes(pane, true); // true = skipCallback

                // NOW make the pane visible - in case was initially hidden
                $P.css({ visibility: "visible", display: "block" });

                // close or hide the pane if specified in settings
                if (o.initClosed && o.closable)
                    close(pane, true, true); // true, true = force, noAnimation
                else if (o.initHidden || o.initClosed)
                    hide(pane); // will be completely invisible - no resizer or spacing
                // ELSE setAsOpen() - called later by initHandles()

                // check option for auto-handling of pop-ups & drop-downs
                if (o.showOverflowOnHover)
                    $P.hover(allowOverflow, resetOverflow);
            });

            /*
            *	init the pane-handles NOW in case we have to hide or close the pane below
            */
            initHandles();

            // now that all panes have been initialized and initially-sized,
            // make sure there is really enough space available for each pane
            $.each(_c.borderPanes.split(","), function(i, pane) {
                if ($Ps[pane] && state[pane].isVisible) { // pane is OPEN
                    setSizeLimits(pane);
                    makePaneFit(pane); // pane may be Closed, Hidden or Resized by makePaneFit()
                }
            });
            // size center-pane AGAIN in case we 'closed' a border-pane in loop above
            sizeMidPanes("center");

            // trigger onResize callbacks for all panes with triggerEventsOnLoad = true
            $.each(_c.allPanes.split(","), function(i, pane) {
                o = options[pane];
                if ($Ps[pane] && o.triggerEventsOnLoad && state[pane].isVisible) // pane is OPEN
                    _execCallback(pane, o.onresize_end || o.onresize); // call onresize
            });
        };

        /**
        * initHandles
        *
        * Initialize module objects, styling, size and position for all resize bars and toggler buttons
        *
        * @callers  create()
        */
        var initHandles = function(panes) {
            if (!panes || panes == "all") panes = _c.borderPanes;

            // create toggler DIVs for each pane, and set object pointers for them, eg: $R.north = north toggler DIV
            $.each(panes.split(","), function(i, pane) {
                var $P = $Ps[pane];
                $Rs[pane] = false; // INIT
                $Ts[pane] = false;
                if (!$P) return; // pane does not exist - skip

                var 
				o = options[pane]
			, s = state[pane]
			, c = _c[pane]
			, rClass = o.resizerClass
			, tClass = o.togglerClass
			, side = c.side.toLowerCase()
			, spacing = (s.isVisible ? o.spacing_open : o.spacing_closed)
			, _pane = "-" + pane // used for classNames
			, _state = (s.isVisible ? "-open" : "-closed") // used for classNames
                // INIT RESIZER BAR
			, $R = $Rs[pane] = $("<div></div>")
                // INIT TOGGLER BUTTON
			, $T = (o.closable ? $Ts[pane] = $("<div></div>") : false)
			;

                if (s.isVisible && o.resizable)
                    ; // handled by initResizable
                else if (!s.isVisible && o.slidable)
                    $R.attr("title", o.sliderTip).css("cursor", o.sliderCursor);

                $R
                // if paneSelector is an ID, then create a matching ID for the resizer, eg: "#paneLeft" => "paneLeft-resizer"
				.attr("id", (o.paneSelector.substr(0, 1) == "#" ? o.paneSelector.substr(1) + "-resizer" : ""))
				.data("layoutRole", "resizer")
				.data("layoutEdge", pane)
				.css(_c.resizers.cssReq).css("zIndex", _c.zIndex.resizer_normal)
				.css(o.applyDemoStyles ? _c.resizers.cssDemo : {}) // add demo styles
				.addClass(rClass + " " + rClass + _pane)
				.appendTo($Container) // append DIV to container
				.hover(addHover, removeHover)
			;

                if ($T) {
                    $T
                    // if paneSelector is an ID, then create a matching ID for the resizer, eg: "#paneLeft" => "#paneLeft-toggler"
					.attr("id", (o.paneSelector.substr(0, 1) == "#" ? o.paneSelector.substr(1) + "-toggler" : ""))
					.data("layoutRole", "toggler")
					.data("layoutEdge", pane)
					.css(_c.togglers.cssReq) // add base/required styles
					.css(o.applyDemoStyles ? _c.togglers.cssDemo : {}) // add demo styles
					.addClass(tClass + " " + tClass + _pane)
					.appendTo($R) // append SPAN to resizer DIV
					.click(function(evt) { toggle(pane); evt.stopPropagation(); })
					.hover(addHover, removeHover)
				;
                    // ADD INNER-SPANS TO TOGGLER
                    if (o.togglerContent_open) // ui-layout-open
                        $("<span>" + o.togglerContent_open + "</span>")
						.data("layoutRole", "togglerContent")
						.data("layoutEdge", pane)
						.addClass("content content-open")
						.css("display", "none")
						.appendTo($T)
						.hover(addHover, removeHover)
					;
                    if (o.togglerContent_closed) // ui-layout-closed
                        $("<span>" + o.togglerContent_closed + "</span>")
						.data("layoutRole", "togglerContent")
						.data("layoutEdge", pane)
						.addClass("content content-closed")
						.css("display", "none")
						.appendTo($T)
						.hover(addHover, removeHover)
					;
                }

                // ADD CLASSNAMES & SLIDE-BINDINGS - eg: class="resizer resizer-west resizer-open"
                if (s.isVisible)
                    setAsOpen(pane); // onOpen will be called, but NOT onResize
                else {
                    setAsClosed(pane); // onClose will be called
                    bindStartSlidingEvent(pane, true); // will enable events IF option is set
                }

            });

            // SET ALL HANDLE DIMENSIONS
            sizeHandles("all");
        };

        /**
        * initButtons
        *
        * Searches for .ui-layout-button-xxx elements and auto-binds them as layout-buttons
        *
        * @callers  create()
        */
        var initButtons = function() {
            var pre = "ui-layout-button-", name;
            $.each("toggle,open,close,pin".split(","), function(i, action) {
                $.each(_c.borderPanes.split(","), function(ii, pane) {
                    $("." + pre + action + "-" + pane).each(function() {
                        // if button was previously 'bound', data.layoutName was set, but is blank if layout has no 'name'
                        name = $(this).data("layoutName") || $(this).attr("layoutName");
                        if (name == undefined || name == options.name)
                            bindButton(this, action, pane);
                    });
                });
            });
        };

        /**
        * initResizable
        *
        * Add resize-bars to all panes that specify it in options
        *
        * @dependancies  $.fn.resizable - will skip if not found
        * @callers  create()
        */
        var initResizable = function(panes) {
            var 
			draggingAvailable = (typeof $.fn.draggable == "function")
		, $Frames, side // set in start()
		;
            if (!panes || panes == "all") panes = _c.borderPanes;

            $.each(panes.split(","), function(idx, pane) {
                var 
				o = options[pane]
			, s = state[pane]
			, c = _c[pane]
			, side = (c.dir == "horz" ? "top" : "left")
			, r, live // set in start because may change
			;
                if (!draggingAvailable || !$Ps[pane] || !o.resizable) {
                    o.resizable = false;
                    return true; // skip to next
                }

                var 
				$P = $Ps[pane]
			, $R = $Rs[pane]
			, base = o.resizerClass
                //	'drag' classes are applied to the ORIGINAL resizer-bar while dragging is in process
			, resizerClass = base + "-drag"				// resizer-drag
			, resizerPaneClass = base + "-" + pane + "-drag"		// resizer-north-drag
                //	'helper' class is applied to the CLONED resizer-bar while it is being dragged
			, helperClass = base + "-dragging"			// resizer-dragging
			, helperPaneClass = base + "-" + pane + "-dragging" // resizer-north-dragging
			, helperLimitClass = base + "-dragging-limit"	// resizer-drag
			, helperClassesSet = false 					// logic var
			;

                if (!s.isClosed)
                    $R
					.attr("title", o.resizerTip)
					.css("cursor", o.resizerCursor) // n-resize, s-resize, etc
				;

                $R.draggable({
                    containment: $Container[0] // limit resizing to layout container
			, axis: (c.dir == "horz" ? "y" : "x") // limit resizing to horz or vert axis
			, delay: 100
			, distance: 1
                    //	basic format for helper - style it using class: .ui-draggable-dragging
			, helper: "clone"
			, opacity: o.resizerDragOpacity
			, addClasses: false // avoid ui-state-disabled class when disabled
                    //,	iframeFix:		o.draggableIframeFix // TODO: consider using when bug is fixed
			, zIndex: _c.zIndex.resizer_drag

			, start: function(e, ui) {
			    // REFRESH options & state pointers in case we used swapPanes
			    o = options[pane];
			    s = state[pane];
			    // re-read options
			    live = o.resizeWhileDragging;

			    // onresize_start callback - will CANCEL hide if returns false
			    // TODO: CONFIRM that dragging can be cancelled like this???
			    if (false === _execCallback(pane, o.onresize_start)) return false;

			    _c.isLayoutBusy = true; // used by sizePane() logic during a liveResize
			    s.isResizing = true; // prevent pane from closing while resizing
			    clearTimer(pane + "_closeSlider"); // just in case already triggered

			    // SET RESIZER LIMITS - used in drag()
			    setSizeLimits(pane); // update pane/resizer state
			    r = s.resizerPosition;

			    $R.addClass(resizerClass + " " + resizerPaneClass); // add drag classes
			    helperClassesSet = false; // reset logic var - see drag()

			    // MASK PANES WITH IFRAMES OR OTHER TROUBLESOME ELEMENTS
			    $Frames = $(o.maskIframesOnResize === true ? "iframe" : o.maskIframesOnResize).filter(":visible");
			    var id, i = 0; // ID incrementer - used when 'resizing' masks during dynamic resizing
			    $Frames.each(function() {
			        id = "ui-layout-mask-" + (++i);
			        $(this).data("layoutMaskID", id); // tag iframe with corresponding maskID
			        $('<div id="' + id + '" class="ui-layout-mask ui-layout-mask-' + pane + '"/>')
							.css({
							    background: "#fff"
							, opacity: "0.001"
							, zIndex: _c.zIndex.iframe_mask
							, position: "absolute"
							, width: this.offsetWidth + "px"
							, height: this.offsetHeight + "px"
							})
							.css($(this).position()) // top & left -- changed from offset()
							.appendTo(this.parentNode) // put mask-div INSIDE pane to avoid zIndex issues
						;
			    });

			    // DISABLE TEXT SELECTION - particularly for WebKit browsers, Safari & Chrome
			    if (o.noSelectionWhileDragging) $(document).disableSelection();
			}

			, drag: function(e, ui) {
			    if (!helperClassesSet) { // can only add classes after clone has been added to the DOM
			        //$(".ui-draggable-dragging")
			        ui.helper
							.addClass(helperClass + " " + helperPaneClass) // add helper classes
							.children().css("visibility", "hidden") // hide toggler inside dragged resizer-bar
						;
			        helperClassesSet = true;
			        // draggable bug!? RE-SET zIndex to prevent E/W resize-bar showing through N/S pane!
			        if (s.isSliding) $Ps[pane].css("zIndex", _c.zIndex.pane_sliding);
			    }
			    // CONTAIN RESIZER-BAR TO RESIZING LIMITS
			    var limit = 0;
			    if (ui.position[side] < r.min) {
			        ui.position[side] = r.min;
			        limit = -1;
			    }
			    else if (ui.position[side] > r.max) {
			        ui.position[side] = r.max;
			        limit = 1;
			    }
			    // ADD/REMOVE dragging-limit CLASS
			    if (limit) {
			        ui.helper.addClass(helperLimitClass); // at dragging-limit
			        window.defaultStatus = "Panel has reached its " + (limit > 0 ? "maximum" : "minimum") + " size";
			    }
			    else {
			        ui.helper.removeClass(helperLimitClass); // not at dragging-limit
			        window.defaultStatus = "";
			    }
			    // DYNAMICALLY RESIZE PANES IF OPTION ENABLED
			    if (live) resizePanes(e, ui, pane);
			}

			, stop: function(e, ui) {
			    // RE-ENABLE TEXT SELECTION
			    if (o.noSelectionWhileDragging) $(document).enableSelection();
			    window.defaultStatus = ""; // clear 'resizing limit' message from statusbar
			    $R.removeClass(resizerClass + " " + resizerPaneClass + " " + helperLimitClass); // remove drag classes from Resizer
			    s.isResizing = false;
			    _c.isLayoutBusy = false; // set BEFORE resizePanes so other logic can pick it up
			    resizePanes(e, ui, pane, true); // true = resizingDone
			}

                });

                /**
                * resizePanes
                *
                * Sub-routine called from stop() and optionally drag()
                */
                var resizePanes = function(e, ui, pane, resizingDone) {
                    var 
					dragPos = ui.position
				, c = _c[pane]
				, resizerPos, newSize
				, i = 0 // ID incrementer
				;
                    switch (pane) {
                        case "north": resizerPos = dragPos.top; break;
                        case "west": resizerPos = dragPos.left; break;
                        case "south": resizerPos = sC.offsetHeight - dragPos.top - o.spacing_open; break;
                        case "east": resizerPos = sC.offsetWidth - dragPos.left - o.spacing_open; break;
                    };

                    // remove container margin from resizer position to get the pane size
                    newSize = resizerPos - sC["inset" + c.side];
                    manualSizePane(pane, newSize);

                    if (resizingDone) {
                        // Remove OR Resize MASK(S) created in drag.start
                        $("div.ui-layout-mask").each(function() { this.parentNode.removeChild(this); });
                        //$("div.ui-layout-mask").remove(); // TODO: Is this less efficient?
                    }
                    else
                        $Frames.each(function() {
                            $("#" + $(this).data("layoutMaskID")) // get corresponding mask by ID
							.css($(this).position()) // update top & left
							.css({ // update width & height
							    width: this.offsetWidth + "px"
							, height: this.offsetHeight + "px"
							})
						;
                        });
                }
            });
        };


        /**
        *	destroy
        *
        *	Destroy this layout and reset all elements
        */
        var destroy = function() {
            // UNBIND layout events
            $(window).unbind("." + sID);
            $(document).unbind("." + sID);

            var 
			isFullPage = (sC.tagName == "BODY")
            //	create list of ALL pane-classes that need to be removed
		, root = o.paneClass // default="ui-layout-pane"
		, _open = "-open"
		, _sliding = "-sliding"
		, _closed = "-closed"
		, generic = [root, root + _open, root + _closed, root + _sliding] // generic classes
		, $P, pRoot, pClasses // loop vars
		;
            // loop all panes to remove layout classes, attributes and bindings
            $.each(_c.allPanes.split(","), function(i, pane) {
                $P = $Ps[pane];
                if (!$P) return true; // no pane - SKIP

                // REMOVE pane's resizer and toggler elements
                if (pane != "center") {
                    $Ts[pane].remove();
                    $Rs[pane].remove();
                }

                pRoot = root + "-" + pane; // eg: "ui-layout-pane-west"
                pClasses = []; // reset
                pClasses.push(pRoot);
                pClasses.push(pRoot + _open);
                pClasses.push(pRoot + _closed);
                pClasses.push(pRoot + _sliding);

                $.merge(pClasses, generic); // ADD generic classes
                $.merge(pClasses, getHoverClasses($P, true)); // ADD hover-classes

                $P
				.removeClass(pClasses.join(" ")) // remove ALL pane-classes
				.removeData("layoutRole")
				.removeData("layoutEdge")
				.unbind("." + sID) // remove ALL Layout events
                // TODO: remove these extra unbind commands when jQuery is fixed
				.unbind("mouseenter")
				.unbind("mouseleave")
			;

                // do NOT reset CSS if this pane is STILL the container of a nested layout!
                // the nested layout will reset its 'container' when/if it is destroyed
                if (!$P.data("layoutContainer"))
                    $P.css($P.data("layoutCSS"));
            });

            // reset layout-container
            $Container.removeData("layoutContainer");

            // do NOT reset container CSS if is a 'pane' in an outer-layout - ie, THIS layout is 'nested'
            if (!$Container.data("layoutEdge"))
                $Container.css($Container.data("layoutCSS")); // RESET CSS
            // for full-page layouts, must also reset the <HTML> CSS
            if (isFullPage)
                $("html").css($("html").data("layoutCSS")); // RESET CSS

            // trigger state-management and onunload callback
            unload();

            var n = options.name; // layout-name
            if (n && window[n]) window[n] = null; // clear window object, if exists
        };


        /*
        * ###########################
        *       ACTION METHODS
        * ###########################
        */

        /**
        * hide / show
        *
        * Completely 'hides' a pane, including its spacing - as if it does not exist
        * The pane is not actually 'removed' from the source, so can use 'show' to un-hide it
        *
        * @param String  pane   The pane being hidden, ie: north, south, east, or west
        */
        var hide = function(pane, noAnimation) {
            var 
			o = options[pane]
		, s = state[pane]
		, $P = $Ps[pane]
		, $R = $Rs[pane]
		;
            if (!$P || s.isHidden) return; // pane does not exist OR is already hidden

            // onhide_start callback - will CANCEL hide if returns false
            if (state.initialized && false === _execCallback(pane, o.onhide_start)) return;

            s.isSliding = false; // just in case

            // now hide the elements
            if ($R) $R.hide(); // hide resizer-bar
            if (!state.initialized || s.isClosed) {
                s.isClosed = true; // to trigger open-animation on show()
                s.isHidden = true;
                s.isVisible = false;
                $P.hide(); // no animation when loading page
                sizeMidPanes(_c[pane].dir == "horz" ? "all" : "center");
                if (state.initialized || o.triggerEventsOnLoad)
                    _execCallback(pane, o.onhide_end || o.onhide);
            }
            else {
                s.isHiding = true; // used by onclose
                close(pane, false, noAnimation); // adjust all panes to fit
            }
        };

        var show = function(pane, openPane, noAnimation, noAlert) {
            var 
			o = options[pane]
		, s = state[pane]
		, $P = $Ps[pane]
		, $R = $Rs[pane]
		;
            if (!$P || !s.isHidden) return; // pane does not exist OR is not hidden

            // onshow_start callback - will CANCEL show if returns false
            if (false === _execCallback(pane, o.onshow_start)) return;

            s.isSliding = false; // just in case
            s.isShowing = true; // used by onopen/onclose
            //s.isHidden  = false; - will be set by open/close - if not cancelled

            // now show the elements
            //if ($R) $R.show(); - will be shown by open/close
            if (openPane === false)
                close(pane, true); // true = force
            else
                open(pane, false, noAnimation, noAlert); // adjust all panes to fit
        };


        var slideOpen = function(evt_or_pane) {
            var pane = (typeof evt_or_pane == "string" ? evt_or_pane : $(this).data("layoutEdge"));
            if (state[pane].isClosed)
                open(pane, true); // true = slide - ie, called from here!
            else // skip 'open' if already open!
                bindStopSlidingEvents(pane, true); // BIND trigger events to close sliding-pane
        };

        var slideClosed = function(evt_or_pane) {
            var 
			$E = (typeof evt_or_pane == "string" ? $Ps[evt_or_pane] : $(this))
		, pane = $E.data("layoutEdge")
		, o = options[pane]
		, s = state[pane]
		, $P = $Ps[pane]
		;
            if (s.isClosed || s.isResizing)
                return; // skip if already closed OR in process of resizing
            else if (o.slideTrigger_close == "click")
                close_NOW(); // close immediately onClick
            else if (o.trackMouseWhenSliding && isMouseOver(pane))
                clearTimer(pane + "_closeSlider"); // browser glitch - mouse is REALLY 'over' the pane
            else // trigger = mouseout - use a delay
                setTimer(pane + "_closeSlider", close_NOW, 300); // .3 sec delay

            // SUBROUTINE for timed close
            function close_NOW(e) {
                if (s.isClosed) // skip 'close' if already closed!
                    bindStopSlidingEvents(pane, false); // UNBIND trigger events
                else
                    close(pane); // close will handle unbinding
            }
        };


        /**
        * toggle
        *
        * Toggles a pane open/closed by calling either open or close
        *
        * @param String  pane   The pane being toggled, ie: north, south, east, or west
        */
        var toggle = function(pane) {
            if (typeof pane != "string")
                pane = $(this).data("layoutEdge"); // bound to $R.dblclick
            var s = state[pane];
            if (s.isHidden)
                show(pane); // will call 'open' after unhiding it
            else if (s.isClosed)
                open(pane);
            else
                close(pane);
        };

        /**
        * close
        *
        * Close the specified pane (animation optional), and resize all other panes as needed
        *
        * @param String  pane   The pane being closed, ie: north, south, east, or west
        */
        var close = function(pane, force, noAnimation, skipCallback) {
            var 
			$P = $Ps[pane]
		, $R = $Rs[pane]
		, $T = $Ts[pane]
		, o = options[pane]
		, s = state[pane]
		, doFX = !noAnimation && !s.isClosed && (o.fxName_close != "none")
            // 	transfer logic vars to temp vars
		, isShowing = s.isShowing
		, isHiding = s.isHiding
		, wasSliding = s.isSliding
		;
            // now clear the logic vars
            delete s.isShowing;
            delete s.isHiding;

            if (!$P || !o.closable) return; // invalid request // (!o.resizable && !o.closable) ???
            else if (!force && s.isClosed && !isShowing) return; // already closed

            if (_c.isLayoutBusy) { // layout is 'busy' - probably with an animation
                _queue("close", pane, force); // set a callback for this action, if possible
                return; // ABORT 
            }

            // onclose_start callback - will CANCEL hide if returns false
            // SKIP if just 'showing' a hidden pane as 'closed'
            if (state.initialized && !isShowing && false === _execCallback(pane, o.onclose_start)) return;

            // SET flow-control flags
            _c[pane].isMoving = true;
            _c.isLayoutBusy = true;

            s.isClosed = true;
            s.isVisible = false;
            // update isHidden BEFORE sizing panes
            if (isHiding) s.isHidden = true;
            else if (isShowing) s.isHidden = false;

            if (s.isSliding) // pane is being closed, so UNBIND trigger events
                bindStopSlidingEvents(pane, false); // will set isSliding=false
            else if (state.initialized) // resize panes adjacent to this one
                sizeMidPanes(_c[pane].dir == "horz" ? "all" : "center", false); // false = NOT skipCallback

            // if this pane has a resizer bar, move it NOW - before animation
            if (state.initialized) setAsClosed(pane); // during init, setAsClosed will be called LATER by initHandles

            // ANIMATE 'CLOSE' - if no animation, then was ALREADY shown above
            if (doFX) {
                lockPaneForFX(pane, true); // need to set left/top so animation will work
                $P.hide(o.fxName_close, o.fxSettings_close, o.fxSpeed_close, function() {
                    lockPaneForFX(pane, false); // undo
                    close_2();
                });
            }
            else {
                $P.hide(); // just hide pane NOW
                close_2();
            };

            // SUBROUTINE
            function close_2() {
                if (s.isClosed) { // make sure pane was not 'reopened' before animation finished!

                    bindStartSlidingEvent(pane, true); // will enable if state.PANE.isSliding = true

                    // if opposite-pane was autoClosed, see if it can be autoOpened now
                    var altPane = _c.altSide[pane];
                    if (state[altPane].noRoom) {
                        setSizeLimits(altPane);
                        makePaneFit(altPane);
                    }

                    if (!skipCallback && (state.initialized || o.triggerEventsOnLoad)) {
                        // onclose callback - UNLESS just 'showing' a hidden pane as 'closed'
                        if (!isShowing && !wasSliding) _execCallback(pane, o.onclose_end || o.onclose);
                        // onhide OR onshow callback
                        if (isShowing) _execCallback(pane, o.onshow_end || o.onshow);
                        if (isHiding) _execCallback(pane, o.onhide_end || o.onhide);
                    }
                }
                // execute internal flow-control callback
                _dequeue(pane);
            }
        };

        var setAsClosed = function(pane) {
            var 
			$P = $Ps[pane]
		, $R = $Rs[pane]
		, $T = $Ts[pane]
		, o = options[pane]
		, s = state[pane]
		, side = _c[pane].side.toLowerCase()
		, inset = "inset" + _c[pane].side
		, rClass = o.resizerClass
		, tClass = o.togglerClass
		, _pane = "-" + pane // used for classNames
		, _open = "-open"
		, _sliding = "-sliding"
		, _closed = "-closed"
		;
            $R
			.css(side, sC[inset]) // move the resizer
			.removeClass(rClass + _open + " " + rClass + _pane + _open)
			.removeClass(rClass + _sliding + " " + rClass + _pane + _sliding)
			.addClass(rClass + _closed + " " + rClass + _pane + _closed)
			.unbind("dblclick." + sID)
		;
            // DISABLE 'resizing' when closed - do this BEFORE bindStartSlidingEvent?
            if (o.resizable && typeof $.fn.draggable == "function")
                $R
				.draggable("disable")
				.removeClass("ui-state-disabled") // do NOT apply disabled styling - not suitable here
				.css("cursor", "default")
				.attr("title", "")
			;

            // if pane has a toggler button, adjust that too
            if ($T) {
                $T
				.removeClass(tClass + _open + " " + tClass + _pane + _open)
				.addClass(tClass + _closed + " " + tClass + _pane + _closed)
				.attr("title", o.togglerTip_closed) // may be blank
			;
                // toggler-content - if exists
                $T.children(".content-open").hide();
                $T.children(".content-closed").css("display", "block");
            }

            // sync any 'pin buttons'
            syncPinBtns(pane, false);

            if (state.initialized) {
                // resize 'length' and position togglers for adjacent panes
                sizeHandles("all");
            }
        };

        /**
        * open
        *
        * Open the specified pane (animation optional), and resize all other panes as needed
        *
        * @param String  pane   The pane being opened, ie: north, south, east, or west
        */
        var open = function(pane, slide, noAnimation, noAlert) {
            var 
			$P = $Ps[pane]
		, $R = $Rs[pane]
		, $T = $Ts[pane]
		, o = options[pane]
		, s = state[pane]
		, doFX = !noAnimation && s.isClosed && (o.fxName_open != "none")
            // 	transfer logic var to temp var
		, isShowing = s.isShowing
		;
            // now clear the logic var
            delete s.isShowing;

            if (!$P || (!o.resizable && !o.closable)) return; // invalid request
            else if (s.isVisible && !s.isSliding) return; // already open

            // pane can ALSO be unhidden by just calling show(), so handle this scenario
            if (s.isHidden && !isShowing) {
                show(pane, true);
                return;
            }

            if (_c.isLayoutBusy) { // layout is 'busy' - probably with an animation
                _queue("open", pane, slide); // set a callback for this action, if possible
                return; // ABORT
            }

            // onopen_start callback - will CANCEL hide if returns false
            if (false === _execCallback(pane, o.onopen_start)) return;

            // make sure there is enough space available to open the pane
            setSizeLimits(pane, slide); // update pane-state
            if (s.minSize > s.maxSize) { // INSUFFICIENT ROOM FOR PANE TO OPEN!
                syncPinBtns(pane, false); // make sure pin-buttons are reset
                if (!noAlert && o.noRoomToOpenTip) alert(o.noRoomToOpenTip);
                return; // ABORT
            }

            // SET flow-control flags
            _c[pane].isMoving = true;
            _c.isLayoutBusy = true;

            if (slide) // START Sliding - will set isSliding=true
                bindStopSlidingEvents(pane, true); // BIND trigger events to close sliding-pane
            else if (s.isSliding) // PIN PANE (stop sliding) - open pane 'normally' instead
                bindStopSlidingEvents(pane, false); // UNBIND trigger events - will set isSliding=false

            s.noRoom = false; // will be reset by makePaneFit if 'noRoom'
            makePaneFit(pane);

            s.isVisible = true;
            s.isClosed = false;
            // update isHidden BEFORE sizing panes - WHY??? Old?
            if (isShowing) s.isHidden = false;

            bindStartSlidingEvent(pane, false); // remove trigger event from resizer-bar

            if (doFX) { // ANIMATE
                lockPaneForFX(pane, true); // need to set left/top so animation will work
                $P.show(o.fxName_open, o.fxSettings_open, o.fxSpeed_open, function() {
                    lockPaneForFX(pane, false); // undo
                    open_2(); // continue
                });
            }
            else {// no animation
                $P.show(); // just show pane and...
                open_2(); // continue
            };

            // SUBROUTINE
            function open_2() {
                if (s.isVisible) { // make sure pane was not closed or hidden before animation finished!

                    // cure iframe display issues
                    _fixIframe(pane);

                    // NOTE: if isSliding, then other panes are NOT 'resized'
                    if (!s.isSliding) // resize all panes adjacent to this one
                        sizeMidPanes(_c[pane].dir == "vert" ? "center" : "all", false); // false = NOT skipCallback
                    else if (o.slideTrigger_close == "mouseout") {
                        if (isMouseOver(pane)) // handle Chrome browser glitch...
                            clearTimer(pane + "_closeSlider"); // prevent premature close
                        else
                            slideClosed(pane);
                    }

                    // set classes, position handles and execute callbacks...
                    setAsOpen(pane);
                }

                // internal flow-control callback
                _dequeue(pane);
            };

        };

        var setAsOpen = function(pane, skipCallback) {
            var 
			$P = $Ps[pane]
		, $R = $Rs[pane]
		, $T = $Ts[pane]
		, o = options[pane]
		, s = state[pane]
		, side = _c[pane].side.toLowerCase()
		, inset = "inset" + _c[pane].side
		, rClass = o.resizerClass
		, tClass = o.togglerClass
		, _pane = "-" + pane // used for classNames
		, _open = "-open"
		, _closed = "-closed"
		, _sliding = "-sliding"
		;
            $R
			.css(side, sC[inset] + getPaneSize(pane)) // move the resizer
			.removeClass(rClass + _closed + " " + rClass + _pane + _closed)
			.addClass(rClass + _open + " " + rClass + _pane + _open)
			.addClass(!s.isSliding ? "" : rClass + _sliding + " " + rClass + _pane + _sliding)
		;
            if (o.resizerDblClickToggle)
                $R.bind("dblclick." + sID, toggle);
            removeHover(0, $R); // remove hover classes
            if (o.resizable && typeof $.fn.draggable == "function")
                $R
				.draggable("enable")
				.css("cursor", o.resizerCursor)
				.attr("title", o.resizerTip)
			;
            else
                $R.css("cursor", "default"); // n-resize, s-resize, etc

            // if pane also has a toggler button, adjust that too
            if ($T) {
                $T
				.removeClass(tClass + _closed + " " + tClass + _pane + _closed)
				.addClass(tClass + _open + " " + tClass + _pane + _open)
				.attr("title", o.togglerTip_open) // may be blank
			;
                removeHover(0, $T); // remove hover classes
                // toggler-content - if exists
                $T.children(".content-closed").hide();
                $T.children(".content-open").css("display", "block");
            }

            // sync any 'pin buttons'
            syncPinBtns(pane, !s.isSliding);

            if (state.initialized) {
                // resize resizer & toggler sizes for all panes
                sizeHandles("all");
                // resize content every time pane opens - to be sure
                sizeContent(pane);
            }

            // update pane-state dimensions
            $.extend(s, getElemDims($P), true);

            if (!skipCallback && (state.initialized || o.triggerEventsOnLoad) && $P.is(":visible")) {
                // onopen callback
                _execCallback(pane, o.onopen_end || o.onopen);
                // onshow callback - TODO: should this be here?
                if (s.isShowing) _execCallback(pane, o.onshow_end || o.onshow);
                // ALSO call onresize because layout-size *may* have changed while pane was closed
                if (state.initialized) _execCallback(pane, o.onresize_end || o.onresize); // if (state.initialized)
            }
        };


        /**
        * lockPaneForFX
        *
        * Must set left/top on East/South panes so animation will work properly
        *
        * @param String  pane  The pane to lock, 'east' or 'south' - any other is ignored!
        * @param Boolean  doLock  true = set left/top, false = remove
        */
        var lockPaneForFX = function(pane, doLock) {
            var $P = $Ps[pane];
            if (doLock) {
                $P.css({ zIndex: _c.zIndex.pane_animate }); // overlay all elements during animation
                if (pane == "south")
                    $P.css({ top: sC.insetTop + sC.innerHeight - $P.outerHeight() });
                else if (pane == "east")
                    $P.css({ left: sC.insetLeft + sC.innerWidth - $P.outerWidth() });
            }
            else { // animation DONE - RESET CSS
                $P.css({ zIndex: (state[pane].isSliding ? _c.zIndex.pane_sliding : _c.zIndex.pane_normal) });
                if (pane == "south")
                    $P.css({ top: "auto" });
                else if (pane == "east")
                    $P.css({ left: "auto" });
                // fix anti-aliasing in IE - only needed for animations that change opacity
                var o = options[pane];
                if (state.browser.msie && o.fxOpacityFix && o.fxName_open != "slide" && $P.css("filter") && $P.css("opacity") == 1)
                    $P[0].style.removeAttribute('filter');
            }
        };


        /**
        * bindStartSlidingEvent
        *
        * Toggle sliding functionality of a specific pane on/off by adding removing 'slide open' trigger
        *
        * @callers  open(), close()
        * @param String  pane  The pane to enable/disable, 'north', 'south', etc.
        * @param Boolean  enable  Enable or Disable sliding?
        */
        var bindStartSlidingEvent = function(pane, enable) {
            var 
			o = options[pane]
		, $R = $Rs[pane]
		, trigger = o.slideTrigger_open
		;
            if (!$R || !o.slidable) return;
            // make sure we have a valid event
            if (trigger != "click" && trigger != "dblclick" && trigger != "mouseover")
                trigger = o.slideTrigger_open = "click";
            $R
            // add or remove trigger event
			[enable ? "bind" : "unbind"](trigger, slideOpen)
            // set the appropriate cursor & title/tip
			.css("cursor", (enable ? o.sliderCursor : "default"))
			.attr("title", (enable ? o.sliderTip : ""))
		;
        };

        /**
        * bindStopSlidingEvents
        *
        * Add or remove 'mouseout' events to 'slide close' when pane is 'sliding' open or closed
        * Also increases zIndex when pane is sliding open
        * See bindStartSlidingEvent for code to control 'slide open'
        *
        * @callers  slideOpen(), slideClosed()
        * @param String  pane  The pane to process, 'north', 'south', etc.
        * @param Boolean  enable  Enable or Disable events?
        */
        var bindStopSlidingEvents = function(pane, enable) {
            var 
			o = options[pane]
		, s = state[pane]
		, trigger = o.slideTrigger_close
		, action = (enable ? "bind" : "unbind") // can't make 'unbind' work! - see disabled code below
		, $P = $Ps[pane]
		, $R = $Rs[pane]
		;

            s.isSliding = enable; // logic
            clearTimer(pane + "_closeSlider"); // just in case

            // raise z-index when sliding
            $P.css({ zIndex: (enable ? _c.zIndex.pane_sliding : _c.zIndex.pane_normal) });
            $R.css({ zIndex: (enable ? _c.zIndex.pane_sliding : _c.zIndex.resizer_normal) });

            // make sure we have a valid event
            if (trigger != "mouseout" && trigger != "click")
                trigger = o.slideTrigger_close = "mouseout";

            // when trigger is 'mouseout', must cancel timer when mouse moves between 'pane' and 'resizer'
            if (enable) { // BIND trigger events
                $R.bind(trigger + "." + sID, slideClosed); // click OR mouseout - 'click' on resizer will close
                if (trigger == "mouseout") {
                    $P.bind("mouseout." + sID, slideClosed);
                    // must cancel timer when mouse moves between 'pane' and 'resizer'
                    $P.bind("mouseover." + sID, cancelMouseOut);
                    $R.bind("mouseover." + sID, cancelMouseOut);
                }
            }
            else { // UNBIND trigger events
                // TODO: why does unbind of a 'single function' not work reliably?
                //$P[action](trigger, slideClosed );
                $R.unbind(trigger + "." + sID);
                if (trigger == "mouseout") {
                    $P.unbind("mouseout." + sID);
                    $P.unbind("mouseover." + sID);
                    $R.unbind("mouseover." + sID);
                    clearTimer(pane + "_closeSlider");
                }
            }

            // SUBROUTINE for mouseout timer clearing
            function cancelMouseOut(evt) {
                clearTimer(pane + "_closeSlider");
                evt.stopPropagation();
            }
        };


        /**
        * makePaneFit
        *
        * Hides/closes a pane if there is insufficient room - reverses this when there is room again
        * MUST have already called setSizeLimits() before calling this method
        */
        var makePaneFit = function(pane, isOpening, skipCallback) {
            var 
			o = options[pane]
		, s = state[pane]
		, c = _c[pane]
		, isSidePane = c.dir == "vert"
		, $P = $Ps[pane]
		, $R = $Rs[pane]
		;

            // special handling for center pane
            if (pane == "center" || (isSidePane && s.noVerticalRoom)) {
                // see if there is enough room to display the center-pane
                if (s.minHeight <= s.maxHeight && (isSidePane || s.minWidth <= s.maxWidth)) {
                    if (s.noRoom) { // previously hidden due to noRoom, so show now
                        $P.show();
                        if ($R) $R.show();
                        s.isVisible = true;
                        s.noRoom = false;
                        if (isSidePane) s.noVerticalRoom = false;
                        _fixIframe(pane);
                    }
                }
                else // NOT hasRoom
                    if (!s.noRoom) { // not currently hidden, so hide now
                    $P.hide();
                    if ($R) $R.hide();
                    s.isVisible = false;
                    s.noRoom = true;
                }
            }

            // see if there is enough room to fit the border-pane
            if (pane == "center") {
                // ignore center in this block
            }
            else if (s.minSize <= s.maxSize) { // pane CAN fit
                if (s.size > s.maxSize) // pane is too big - shrink it
                    sizePane(pane, s.maxSize, skipCallback);
                else if (s.size < s.minSize) // pane is too small - enlarge it
                    sizePane(pane, s.minSize, skipCallback);
                else if ($R && $P.is(":visible")) {
                    // make sure resizer-bar is positioned correctly
                    // handles situation where nested layout was 'hidden' when initialized
                    var 
					side = c.side.toLowerCase()
				, pos = s.size + sC["inset" + c.side]
				;
                    if (_cssNum($R, side) != pos) $R.css(side, pos);
                }

                // if was previously hidden due to noRoom, then RESET because NOW there is room
                if (s.noRoom) {
                    // s.noRoom state will be set by open or show
                    if (s.wasOpen && o.closable) {
                        if (o.autoReopen)
                            open(pane, false, true, true); // true = noAnimation, true = noAlert
                        else // leave the pane closed, so just update state
                            s.noRoom = false;
                    }
                    else
                        show(pane, s.wasOpen, true, true); // true = noAnimation, true = noAlert
                }
            }
            else { // pane CANNOT fit
                if (!s.noRoom) { // pane not set as noRoom yet, so hide or close it now...
                    s.noRoom = true; // update state
                    s.wasOpen = !s.isClosed && !s.isSliding;
                    if (o.closable) // 'close' if possible
                        close(pane, true, true); // true = force, true = noAnimation
                    else // 'hide' pane if cannot just be closed
                        hide(pane, true); // true = noAnimation
                }
            }
        };


        /**
        * sizePane / manualSizePane
        *
        * sizePane is called only by internal methods whenever a pane needs to be resized
        * manualSizePane is an exposed flow-through method allowing extra code when pane is 'manually resized'
        *
        * @param String	pane	The pane being resized
        * @param Integer	size	The *desired* new size for this pane - will be validated
        * @param Boolean	skipCallback	Should the onresize callback be run?
        */
        var manualSizePane = function(pane, size, skipCallback) {
            // ANY call to sizePane will disabled autoResize
            var 
			o = options[pane]
            //	if resizing callbacks have been delayed and resizing is now DONE, force resizing to complete...
		, forceResize = o.resizeWhileDragging && !o.triggerEventsWhileDragging && !_c.isLayoutBusy
		;
            o.autoResize = false;
            // flow-through...
            sizePane(pane, size, skipCallback, forceResize);
        }
        var sizePane = function(pane, size, skipCallback, force) {
            var 
			o = options[pane]
		, s = state[pane]
		, $P = $Ps[pane]
		, $R = $Rs[pane]
		, side = _c[pane].side.toLowerCase()
		, inset = "inset" + _c[pane].side
		, oldSize
		;
            // calculate 'current' min/max sizes
            setSizeLimits(pane); // update pane-state
            oldSize = s.size;

            size = _parseSize(pane, size); // handle percentages & auto
            size = max(size, _parseSize(pane, o.minSize));
            size = min(size, s.maxSize);
            if (size < s.minSize) { // not enough room for pane!
                makePaneFit(pane, false, skipCallback); // will hide or close pane
                return;
            }

            // IF newSize is same as oldSize, then nothing to do - abort
            if (!force && size == oldSize) return;
            s.size = size;

            // resize the pane and move the resizer
            $P.css(_c[pane].sizeType.toLowerCase(), max(1, cssSize(pane, size)));

            // update pane-state dimensions
            $.extend(s, getElemDims($P), true);

            // reposition the resizer-bar
            if ($R && $P.is(":visible")) $R.css(side, size + sC[inset]);

            // resize all the adjacent panes, and adjust their toggler buttons
            // when skipCallback passed, it means the controlling method will handle 'other panes'
            if (!skipCallback) {
                if (!s.isSliding) sizeMidPanes(_c[pane].dir == "horz" ? "all" : "center", skipCallback);
                sizeHandles("all");
            }

            sizeContent(pane);

            if (!o.triggerEventsWhileDragging && _c.isLayoutBusy)
                ; // no callback on this pane if resize is in progress
            else if (!skipCallback && state.initialized && s.isVisible)
                _execCallback(pane, o.onresize_end || o.onresize);

            // if opposite-pane was autoClosed, see if it can be autoOpened now
            var altPane = _c.altSide[pane];
            if (size < oldSize && state[altPane].noRoom) {
                setSizeLimits(altPane);
                makePaneFit(altPane, false, skipCallback);
            }
        };

        /**
        * sizeMidPanes
        *
        * @callers  initPanes(), sizePane(), resizeAll(), open(), close(), hide()
        */
        var sizeMidPanes = function(panes, skipCallback) {
            if (!panes || panes == "all") panes = "east,west,center";

            $.each(panes.split(","), function(i, pane) {
                if (!$Ps[pane]) return; // NO PANE - skip
                var 
				o = options[pane]
			, s = state[pane]
			, $P = $Ps[pane]
			, $R = $Rs[pane]
			, isCenter = (pane == "center")
			, hasRoom = true
			, CSS = {}
			, d = calcNewCenterPaneDims()
			;
                if (pane == "center") {
                    if (s.isVisible && d.width == s.outerWidth && d.height == s.outerHeight)
                        return true; // SKIP - pane already the correct size
                    CSS = d;
                    // convert OUTER width/height to CSS width/height 
                    CSS.width = cssW(pane, CSS.width);
                    CSS.height = cssH(pane, CSS.height);
                    hasRoom = (CSS.width > 0 && CSS.height > 0);
                    // set state.minWidth/Height/.maxWidth/Height for makePaneFit() logic
                    $.extend(s, cssMinDims(pane), {
                        maxWidth: max(0, CSS.width)
				, maxHeight: max(0, CSS.height)
                    });
                }
                else { // for east and west, set only the height, which is same as center height
                    // set state.minWidth/Height/.maxHeight for makePaneFit() logic
                    $.extend(s, getElemDims($P), cssMinDims(pane))
                    if (!s.noVerticalRoom && d.height == s.outerHeight)
                        return true; // SKIP - pane already the correct size
                    CSS.top = d.top;
                    CSS.bottom = d.bottom;
                    CSS.height = cssH(pane, d.height);
                    s.maxHeight = max(0, CSS.height);
                    hasRoom = (s.maxHeight > 0);
                    if (!hasRoom) s.noVerticalRoom = true; // makePaneFit() logic
                }

                if (hasRoom) {
                    $P.css(CSS); // apply the CSS to pane
                    if (pane == "center") $.extend(s, getElemDims($P)); // set new dimensions
                    if (s.noRoom) makePaneFit(pane); // will re-open/show auto-closed/hidden pane
                    if (state.initialized) sizeContent(pane);
                }
                else if (!s.noRoom && s.isVisible) // no room for pane
                    makePaneFit(pane); // will hide or close pane

                /*
                * Extra CSS for IE6 or IE7 in Quirks-mode - add 'width' to NORTH/SOUTH panes
                * Normally these panes have only 'left' & 'right' positions so pane auto-sizes
                * ALSO required when pane is an IFRAME because will NOT default to 'full width'
                */
                if (pane == "center") { // finished processing midPanes
                    var b = state.browser;
                    var fix = b.isIE6 || (b.msie && !b.boxModel);
                    if ($Ps.north && (fix || state.north.tagName == "IFRAME"))
                        $Ps.north.css("width", cssW($Ps.north, sC.innerWidth));
                    if ($Ps.south && (fix || state.south.tagName == "IFRAME"))
                        $Ps.south.css("width", cssW($Ps.south, sC.innerWidth));
                }

                // resizeAll passes skipCallback because it triggers callbacks after ALL panes are resized
                if (!o.triggerEventsWhileDragging && _c.isLayoutBusy && skipCallback !== false)
                    ; // no callback on this pane if resize is in progress
                else if (!skipCallback && state.initialized && s.isVisible)
                    _execCallback(pane, o.onresize_end || o.onresize);
            });
        };


        /**
        * resizeAll
        *
        * @callers  window.onresize(), callbacks or custom code
        */
        var resizeAll = function() {
            var 
			oldW = sC.innerWidth
		, oldH = sC.innerHeight
		;
            $.extend(state.container, getElemDims($Container)); // UPDATE container dimensions
            if (!sC.outerHeight) return; // cannot size layout when 'container' is hidden or collapsed

            // onresizeall_start will CANCEL resizing if returns false
            // state.container has already been set, so user can access this info for calcuations
            if (false === _execCallback(null, options.onresizeall_start)) return false;

            var 
            // see if container is now 'smaller' than before
			shrunkH = (sC.innerHeight < oldH)
		, shrunkW = (sC.innerWidth < oldW)
		, o, s, dir
		;
            // NOTE special order for sizing: S-N-E-W
            $.each(["south", "north", "east", "west"], function(i, pane) {
                if (!$Ps[pane]) return; // no pane - SKIP
                s = state[pane];
                o = options[pane];
                dir = _c[pane].dir;

                if (o.autoResize && s.size != o.size) // resize pane to original size set in options
                    sizePane(pane, o.size, true); // true - skipCallback
                else {
                    setSizeLimits(pane);
                    makePaneFit(pane, false, true); // true - skipCallback
                }
            });

            sizeMidPanes("all", true); // true - skipCallback
            sizeHandles("all"); // reposition the toggler elements

            // trigger all individual pane callbacks AFTER layout has finished resizing
            o = options; // reuse alias
            $.each(_c.allPanes.split(","), function(i, pane) {
                if (state[pane].isVisible) // undefined for non-existent panes
                    _execCallback(pane, o[pane].onresize_end || o[pane].onresize); // callback - if exists
            });

            _execCallback(null, o.onresizeall_end || o.onresizeall); // onresizeall callback, if exists
        };


        /**
        * sizeContent
        *
        * IF pane has a content-div, then resize all elements inside pane to fit pane-height
        */
        var sizeContent = function(panes, recalc) {
            if (!panes || panes == "all") panes = _c.allPanes;
            recalc = true; // Always recalc sizes for now

            $.each(panes.split(","), function(idx, pane) {
                if (!$Cs[pane]) return; // NO CONTENT - skip
                var 
				s = state[pane].content
			, $P = $Ps[pane]
			, $C = $Cs[pane]
			, pHeight = cssH($P)	// pane.innerHeight
			, above = 0
			, below = 0
			;
                if (!$P.is(":visible"))
                    return true; // NOT VISIBLE - skip
                else if (!recalc && s) {
                    above = s.above;
                    below = s.below;
                }
                else {
                    var CSS = _showInvisibly($C);
                    above = $C.position().top;
                    var 
					cHeight = $C.outerHeight() // EXCLUDING margins
				, cBottom = above + cHeight
				, ignore = options[pane].contentIgnoreSelector
				, $Es = $P.children()
				;

                    for (var i = $Es.length - 1; i >= 0; i--) {
                        if ($Es[i] == $C[0]) break; // Content elem - NOTHING AFTER IT
                        var $E = $($Es[i]);
                        if ((!ignore || !$E.is(ignore)) && $E.css("display") != "none" && !$E.hasClass('ui-layout-mask')) {
                            var // IMPORTANT - must measure outerHeight() BEFORE position() or else eTop=0 - some kind of bug!
							eHt = $E.outerHeight()
						, eTop = $E.position().top
						, eBot = eTop + eHt + _cssNum($E, 'marginBottom')
						;
                            below = eBot - cBottom;
                            // save size-data to use next time
                            state[pane].content = { above: above, below: below };
                            break;
                        }
                        // restore original visiblity
                        $C.css(CSS);
                    }
                }
                // resize the Content element to fit -  will autoHide if not enough room
                setOuterHeight($C, (pHeight - above - below), true); // true=autoHide
            }); // END $.each(panes)
        };


        /**
        * sizeHandles
        *
        * Called every time a pane is opened, closed, or resized to slide the togglers to 'center' and adjust their length if necessary
        *
        * @callers  initHandles(), open(), close(), resizeAll()
        */
        var sizeHandles = function(panes) {
            if (!panes || panes == "all") panes = _c.borderPanes;

            $.each(panes.split(","), function(i, pane) {
                var 
				o = options[pane]
			, s = state[pane]
			, $P = $Ps[pane]
			, $R = $Rs[pane]
			, $T = $Ts[pane]
			, $TC
			;
                if (!$P || !$R) return;

                var 
				dir = _c[pane].dir
			, _state = (s.isClosed ? "_closed" : "_open")
			, spacing = o["spacing" + _state]
			, togAlign = o["togglerAlign" + _state]
			, togLen = o["togglerLength" + _state]
			, paneLen
			, offset
			, CSS = {}
			;

                if (spacing == 0) {
                    $R.hide();
                    return;
                }
                else if (!s.noRoom && !s.isHidden) // skip if resizer was hidden for any reason
                    $R.show(); // in case was previously hidden

                // Resizer Bar is ALWAYS same width/height of pane it is attached to
                if (dir == "horz") { // north/south
                    paneLen = $P.outerWidth(); // s.outerWidth || 
                    s.resizerLength = paneLen;
                    $R.css({
                        width: max(1, cssW($R, paneLen)) // account for borders & padding
				, height: max(0, cssH($R, spacing)) // ditto
				, left: _cssNum($P, "left")
                    });
                }
                else { // east/west
                    paneLen = $P.outerHeight(); // s.outerHeight || 
                    s.resizerLength = paneLen;
                    $R.css({
                        height: max(1, cssH($R, paneLen)) // account for borders & padding
				, width: max(0, cssW($R, spacing)) // ditto
				, top: sC.insetTop + getPaneSize("north", true) // TODO: what if no North pane?
                        //,	top:	_cssNum($Ps["center"], "top")
                    });
                }

                // remove hover classes
                removeHover(o, $R);

                if ($T) {
                    if (togLen == 0 || (s.isSliding && o.hideTogglerOnSlide)) {
                        $T.hide(); // always HIDE the toggler when 'sliding'
                        return;
                    }
                    else
                        $T.show(); // in case was previously hidden

                    if (!(togLen > 0) || togLen == "100%" || togLen > paneLen) {
                        togLen = paneLen;
                        offset = 0;
                    }
                    else { // calculate 'offset' based on options.PANE.togglerAlign_open/closed
                        if (typeof togAlign == "string") {
                            switch (togAlign) {
                                case "top":
                                case "left": offset = 0;
                                    break;
                                case "bottom":
                                case "right": offset = paneLen - togLen;
                                    break;
                                case "middle":
                                case "center":
                                default: offset = Math.floor((paneLen - togLen) / 2); // 'default' catches typos
                            }
                        }
                        else { // togAlign = number
                            var x = parseInt(togAlign); //
                            if (togAlign >= 0) offset = x;
                            else offset = paneLen - togLen + x; // NOTE: x is negative!
                        }
                    }

                    if (dir == "horz") { // north/south
                        var width = cssW($T, togLen);
                        $T.css({
                            width: max(0, width)  // account for borders & padding
					, height: max(1, cssH($T, spacing)) // ditto
					, left: offset // TODO: VERIFY that toggler  positions correctly for ALL values
					, top: 0
                        });
                        // CENTER the toggler content SPAN
                        $T.children(".content").each(function() {
                            $TC = $(this);
                            $TC.css("marginLeft", Math.floor((width - $TC.outerWidth()) / 2)); // could be negative
                        });
                    }
                    else { // east/west
                        var height = cssH($T, togLen);
                        $T.css({
                            height: max(0, height)  // account for borders & padding
					, width: max(1, cssW($T, spacing)) // ditto
					, top: offset // POSITION the toggler
					, left: 0
                        });
                        // CENTER the toggler content SPAN
                        $T.children(".content").each(function() {
                            $TC = $(this);
                            $TC.css("marginTop", Math.floor((height - $TC.outerHeight()) / 2)); // could be negative
                        });
                    }

                    // remove ALL hover classes
                    removeHover(0, $T);
                }

                // DONE measuring and sizing this resizer/toggler, so can be 'hidden' now
                if (!state.initialized && o.initHidden) {
                    $R.hide();
                    if ($T) $T.hide();
                }
            });
        };


        /**
        *	swapPanes
        *
        *	Move a pane from source-side (eg, west) to target-side (eg, east)
        *	If pane exists on target-side, move that to source-side, ie, 'swap' the panes
        */
        var swapPanes = function(pane1, pane2) {
            var 
			oPane1 = copy(pane1)
		, oPane2 = copy(pane2)
		, sizes = {}
		;
            sizes[pane1] = oPane1 ? oPane1.state.size : 0;
            sizes[pane2] = oPane2 ? oPane2.state.size : 0;

            // clear pointers & state
            $Ps[pane1] = false;
            $Ps[pane2] = false;
            state[pane1] = {};
            state[pane2] = {};

            // transfer element pointers and data to NEW Layout keys
            move(oPane1, pane2);
            move(oPane2, pane1);

            if (!$Ps[pane1] && $Rs[pane1]) {
                $Rs[pane1].remove();
                $Rs[pane1] = false;
                $Ts[pane1] = false;
            }

            if (!$Ps[pane2] && $Rs[pane2]) {
                $Rs[pane2].remove();
                $Rs[pane2] = false;
                $Ts[pane2] = false;
            }

            // resize layout - will move all elements as needed
            resizeAll();

            // make panes 'visible' again
            if ($Ps[pane1]) $Ps[pane1].css(_c.visible);
            if ($Ps[pane2]) $Ps[pane2].css(_c.visible);

            return;

            function copy(n) { // n = pane
                var 
				$P = $Ps[n]
			, $C = $Cs[n]
			;
                return !$P ? false : {
                    pane: n
			, P: $P ? $P[0] : false
			, C: $C ? $C[0] : false
			, state: $.extend({}, state[n])
			, options: $.extend({}, options[n])
                }
            };

            function move(oPane, pane) {
                if (!oPane) return;
                var 
				P = oPane.P
			, C = oPane.C
			, oldPane = oPane.pane
			, c = _c[pane]
			, side = c.side.toLowerCase()
			, inset = "inset" + c.side
                //	save pane-options that should be retained
			, s = $.extend({}, state[pane])
			, o = options[pane]
                //	RETAIN side-specific FX Settings - more below
			, fx = { resizerCursor: o.resizerCursor }
			, re, size, pos
			;
                $.each("fxName,fxSpeed,fxSettings".split(","), function(i, k) {
                    fx[k] = o[k];
                    fx[k + "_open"] = o[k + "_open"];
                    fx[k + "_close"] = o[k + "_close"];
                });

                // update object pointers and attributes
                $Ps[pane] = $(P)
				.data("layoutEdge", pane)
				.css(_c.hidden)
				.css(c.cssReq)
			;
                $Cs[pane] = C ? $(C) : false;

                // set options and state
                options[pane] = $.extend({}, oPane.options, fx);
                state[pane] = $.extend({}, oPane.state);

                // change classNames on the pane, eg: ui-layout-pane-east ==> ui-layout-pane-west
                re = new RegExp("pane-" + oldPane, "g");
                P.className = P.className.replace(re, "pane-" + pane);

                if (!$Rs[pane]) {
                    initHandles(pane); // create the required resizer & toggler
                    initResizable(pane);
                }

                // if moving to different orientation, then keep 'target' pane size
                if (c.dir != _c[oldPane].dir) {
                    size = sizes[pane] || 0;
                    setSizeLimits(pane); // update pane-state
                    size = max(size, state[pane].minSize);
                    // use manualSizePane to disable autoResize - not useful after panes are swapped
                    manualSizePane(pane, size, true); // true = skipCallback
                }
                else // move the resizer here
                    $Rs[pane].css(side, sC[inset] + (state[pane].isVisible ? getPaneSize(pane) : 0));


                // ADD CLASSNAMES & SLIDE-BINDINGS
                if (oPane.state.isVisible && !s.isVisible)
                    setAsOpen(pane, true); // true = skipCallback
                else {
                    setAsClosed(pane, true); // true = skipCallback
                    bindStartSlidingEvent(pane, true); // will enable events IF option is set
                }

                // DESTROY the object
                oPane = null;
            };
        };


        /**
        * keyDown
        *
        * Capture keys when enableCursorHotkey - toggle pane if hotkey pressed
        *
        * @callers  document.keydown()
        */
        function keyDown(evt) {
            if (!evt) return true;
            var code = evt.keyCode;
            if (code < 33) return true; // ignore special keys: ENTER, TAB, etc

            var 
			PANE = {
			    38: "north" // Up Cursor	- $.ui.keyCode.UP
			, 40: "south" // Down Cursor	- $.ui.keyCode.DOWN
			, 37: "west"  // Left Cursor	- $.ui.keyCode.LEFT
			, 39: "east"  // Right Cursor	- $.ui.keyCode.RIGHT
			}
		, ALT = evt.altKey // no worky!
		, SHIFT = evt.shiftKey
		, CTRL = evt.ctrlKey
		, CURSOR = (CTRL && code >= 37 && code <= 40)
		, o, k, m, pane
		;

            if (CURSOR && options[PANE[code]].enableCursorHotkey) // valid cursor-hotkey
                pane = PANE[code];
            else if (CTRL || SHIFT) // check to see if this matches a custom-hotkey
                $.each(_c.borderPanes.split(","), function(i, p) { // loop each pane to check its hotkey
                    o = options[p];
                    k = o.customHotkey;
                    m = o.customHotkeyModifier; // if missing or invalid, treated as "CTRL+SHIFT"
                    if ((SHIFT && m == "SHIFT") || (CTRL && m == "CTRL") || (CTRL && SHIFT)) { // Modifier matches
                        if (k && code == (isNaN(k) || k <= 9 ? k.toUpperCase().charCodeAt(0) : k)) { // Key matches
                            pane = p;
                            return false; // BREAK
                        }
                    }
                });

            // validate pane
            if (!pane || !$Ps[pane] || !options[pane].closable || state[pane].isHidden)
                return true;

            toggle(pane);

            evt.stopPropagation();
            evt.returnValue = false; // CANCEL key
            return false;
        };


        /*
        * ######################################
        *      UTILITY METHODS
        *   called externally or by initButtons
        * ######################################
        */

        /**
        * allowOverflow / resetOverflow
        *
        * Change/reset a pane's overflow setting & zIndex to allow popups/drop-downs to work
        *
        * @param element   elem 	Optional - can also be 'bound' to a click, mouseOver, or other event
        */
        function allowOverflow(el) {
            if (this && this.tagName) el = this; // BOUND to element
            var $P;
            if (typeof el == "string")
                $P = $Ps[el];
            else if ($(el).data("layoutRole"))
                $P = $(el);
            else
                $(el).parents.each(function() {
                    if ($(this).data("layoutRole")) {
                        $P = $(this);
                        return false; // BREAK
                    }
                });
            if (!$P || !$P.length) return; // INVALID

            var 
			pane = $P.data("layoutEdge")
		, s = state[pane]
		;

            // if pane is already raised, then reset it before doing it again!
            // this would happen if allowOverflow is attached to BOTH the pane and an element 
            if (s.cssSaved)
                resetOverflow(pane); // reset previous CSS before continuing

            // if pane is raised by sliding or resizing, or it's closed, then abort
            if (s.isSliding || s.isResizing || s.isClosed) {
                s.cssSaved = false;
                return;
            }

            var 
			newCSS = { zIndex: (_c.zIndex.pane_normal + 1) }
		, curCSS = {}
		, of = $P.css("overflow")
		, ofX = $P.css("overflowX")
		, ofY = $P.css("overflowY")
		;
            // determine which, if any, overflow settings need to be changed
            if (of != "visible") {
                curCSS.overflow = of;
                newCSS.overflow = "visible";
            }
            if (ofX && ofX != "visible" && ofX != "auto") {
                curCSS.overflowX = ofX;
                newCSS.overflowX = "visible";
            }
            if (ofY && ofY != "visible" && ofY != "auto") {
                curCSS.overflowY = ofX;
                newCSS.overflowY = "visible";
            }

            // save the current overflow settings - even if blank!
            s.cssSaved = curCSS;

            // apply new CSS to raise zIndex and, if necessary, make overflow 'visible'
            $P.css(newCSS);

            // make sure the zIndex of all other panes is normal
            $.each(_c.allPanes.split(","), function(i, p) {
                if (p != pane) resetOverflow(p);
            });

        };

        function resetOverflow(el) {
            if (this && this.tagName) el = this; // BOUND to element
            var $P;
            if (typeof el == "string")
                $P = $Ps[el];
            else if ($(el).data("layoutRole"))
                $P = $(el);
            else
                $(el).parents.each(function() {
                    if ($(this).data("layoutRole")) {
                        $P = $(this);
                        return false; // BREAK
                    }
                });
            if (!$P || !$P.length) return; // INVALID

            var 
			pane = $P.data("layoutEdge")
		, s = state[pane]
		, CSS = s.cssSaved || {}
		;
            // reset the zIndex
            if (!s.isSliding && !s.isResizing)
                $P.css("zIndex", _c.zIndex.pane_normal);

            // reset Overflow - if necessary
            $P.css(CSS);

            // clear var
            s.cssSaved = false;
        };


        /**
        * getBtn
        *
        * Helper function to validate params received by addButton utilities
        *
        * Two classes are added to the element, based on the buttonClass...
        * The type of button is appended to create the 2nd className:
        *  - ui-layout-button-pin
        *  - ui-layout-pane-button-toggle
        *  - ui-layout-pane-button-open
        *  - ui-layout-pane-button-close
        *
        * @param String   selector 	jQuery selector for button, eg: ".ui-layout-north .toggle-button"
        * @param String   pane 		Name of the pane the button is for: 'north', 'south', etc.
        * @returns  If both params valid, the element matching 'selector' in a jQuery wrapper - otherwise 'false'
        */
        function getBtn(selector, pane, action) {
            var $E = $(selector);
            if (!$E.length) // element not found
                alert(lang.errButton + lang.selector + ": " + selector);
            else if (_c.borderPanes.indexOf(pane) == -1) // invalid 'pane' sepecified
                alert(lang.errButton + lang.Pane.toLowerCase() + ": " + pane);
            else { // VALID
                var btn = options[pane].buttonClass + "-" + action;
                $E
				.addClass(btn + " " + btn + "-" + pane)
				.data("layoutName", options.name) // add layout identifier - even if blank!
			;
                return $E;
            }
            return false;  // INVALID
        };


        /**
        * bindButton
        *
        * NEW syntax for binding layout-buttons - will eventually replace addToggleBtn, addOpenBtn, etc.
        *
        */
        function bindButton(selector, action, pane) {
            switch (action.toLowerCase()) {
                case "toggle": addToggleBtn(selector, pane); break;
                case "open": addOpenBtn(selector, pane); break;
                case "close": addCloseBtn(selector, pane); break;
                case "pin": addPinBtn(selector, pane);
            }
        };

        /**
        * addToggleBtn
        *
        * Add a custom Toggler button for a pane
        *
        * @param String   selector 	jQuery selector for button, eg: ".ui-layout-north .toggle-button"
        * @param String   pane 		Name of the pane the button is for: 'north', 'south', etc.
        */
        function addToggleBtn(selector, pane) {
            var $E = getBtn(selector, pane, "toggle");
            if ($E)
                $E
				.attr("title", state[pane].isClosed ? lang.Open : lang.Close)
				.click(function(evt) {
				    toggle(pane);
				    evt.stopPropagation();
				})
			;
        };

        /**
        * addOpenBtn
        *
        * Add a custom Open button for a pane
        *
        * @param String   selector 	jQuery selector for button, eg: ".ui-layout-north .open-button"
        * @param String   pane 		Name of the pane the button is for: 'north', 'south', etc.
        */
        function addOpenBtn(selector, pane) {
            var $E = getBtn(selector, pane, "open");
            if ($E)
                $E
				.attr("title", lang.Open)
				.click(function(evt) {
				    open(pane);
				    evt.stopPropagation();
				})
			;
        };

        /**
        * addCloseBtn
        *
        * Add a custom Close button for a pane
        *
        * @param String   selector 	jQuery selector for button, eg: ".ui-layout-north .close-button"
        * @param String   pane 		Name of the pane the button is for: 'north', 'south', etc.
        */
        function addCloseBtn(selector, pane) {
            var $E = getBtn(selector, pane, "close");
            if ($E)
                $E
				.attr("title", lang.Close)
				.click(function(evt) {
				    close(pane);
				    evt.stopPropagation();
				})
			;
        };

        /**
        * addPinBtn
        *
        * Add a custom Pin button for a pane
        *
        * Four classes are added to the element, based on the paneClass for the associated pane...
        * Assuming the default paneClass and the pin is 'up', these classes are added for a west-pane pin:
        *  - ui-layout-pane-pin
        *  - ui-layout-pane-west-pin
        *  - ui-layout-pane-pin-up
        *  - ui-layout-pane-west-pin-up
        *
        * @param String   selector 	jQuery selector for button, eg: ".ui-layout-north .ui-layout-pin"
        * @param String   pane 		Name of the pane the pin is for: 'north', 'south', etc.
        */
        function addPinBtn(selector, pane) {
            var $E = getBtn(selector, pane, "pin");
            if ($E) {
                var s = state[pane];
                $E.click(function(evt) {
                    setPinState($(this), pane, (s.isSliding || s.isClosed));
                    if (s.isSliding || s.isClosed) open(pane); // change from sliding to open
                    else close(pane); // slide-closed
                    evt.stopPropagation();
                });
                // add up/down pin attributes and classes
                setPinState($E, pane, (!s.isClosed && !s.isSliding));
                // add this pin to the pane data so we can 'sync it' automatically
                // PANE.pins key is an array so we can store multiple pins for each pane
                _c[pane].pins.push(selector); // just save the selector string
            }
        };

        /**
        * syncPinBtns
        *
        * INTERNAL function to sync 'pin buttons' when pane is opened or closed
        * Unpinned means the pane is 'sliding' - ie, over-top of the adjacent panes
        *
        * @callers  open(), close()
        * @params  pane   These are the params returned to callbacks by layout()
        * @params  doPin  True means set the pin 'down', False means 'up'
        */
        function syncPinBtns(pane, doPin) {
            $.each(_c[pane].pins, function(i, selector) {
                setPinState($(selector), pane, doPin);
            });
        };

        /**
        * setPinState
        *
        * Change the class of the pin button to make it look 'up' or 'down'
        *
        * @callers  addPinBtn(), syncPinBtns()
        * @param Element  $Pin		The pin-span element in a jQuery wrapper
        * @param Boolean  doPin		True = set the pin 'down', False = set it 'up'
        * @param String   pinClass	The root classname for pins - will add '-up' or '-down' suffix
        */
        function setPinState($Pin, pane, doPin) {
            var updown = $Pin.attr("pin");
            if (updown && doPin == (updown == "down")) return; // already in correct state
            var 
			pin = options[pane].buttonClass + "-pin"
		, side = pin + "-" + pane
		, UP = pin + "-up " + side + "-up"
		, DN = pin + "-down " + side + "-down"
		;
            $Pin
			.attr("pin", doPin ? "down" : "up") // logic
			.attr("title", doPin ? lang.Unpin : lang.Pin)
			.removeClass(doPin ? UP : DN)
			.addClass(doPin ? DN : UP)
		;
        };


        /*
        *	LAYOUT STATE MANAGEMENT
        *
        *	@example .layout({ cookie: { name: "myLayout", keys: "west.isClosed,east.isClosed" } })
        *	@example .layout({ cookie__name: "myLayout", cookie__keys: "west.isClosed,east.isClosed" })
        *	@example myLayout.getState( "west.isClosed,north.size,south.isHidden" );
        *	@example myLayout.saveCookie( "west.isClosed,north.size,south.isHidden", {expires: 7} );
        *	@example myLayout.deleteCookie();
        *	@example myLayout.loadCookie();
        *	@example var hSaved = myLayout.state.cookie;
        */

        function isCookiesEnabled() {
            // TODO: is the cookieEnabled property common enough to be useful???
            return (navigator.cookieEnabled != 0);
        };

        /*
        * getCookie
        *
        * Read & return data from the cookie - as JSON
        */
        function getCookie(opts) {
            var 
			o = $.extend({}, options.cookie, opts || {})
		, name = o.name || options.name || "Layout"
		, c = document.cookie
		, cs = c ? c.split(';') : []
		, pair	// loop var
		;
            for (var i = 0, n = cs.length; i < n; i++) {
                pair = $.trim(cs[i]).split('='); // name=value pair
                if (pair[0] == name) // found the layout cookie
                // convert cookie string back to a hash
                    return decodeJSON(decodeURIComponent(pair[1]));
            }
            return "";
        };

        /*
        * saveCookie
        *
        * Get the current layout state and save it to a cookie
        */
        function saveCookie(keys, opts) {
            var 
			o = $.extend({}, options.cookie, opts || {})
		, name = o.name || options.name || "Layout"
		, params = ''
		, date = ''
		, clear = false
		;
            if (o.expires.toUTCString)
                date = o.expires;
            else if (typeof o.expires == 'number') {
                date = new Date();
                if (o.expires > 0)
                    date.setDate(date.getDate() + o.expires);
                else {
                    date.setYear(1970);
                    clear = true;
                }
            }
            if (date) params += ';expires=' + date.toUTCString();
            if (o.path) params += ';path=' + o.path;
            if (o.domain) params += ';domain=' + o.domain;
            if (o.secure) params += ';secure';

            if (clear) {
                state.cookie = {}; // clear data
                document.cookie = name + '=' + params; // expire the cookie
            }
            else {
                state.cookie = getState(keys || o.keys); // read current panes-state
                document.cookie = name + '=' + encodeURIComponent(encodeJSON(state.cookie)) + params; // write cookie
            }

            return $.extend({}, state.cookie); // return COPY of state.cookie
        };

        /*
        * deleteCookie
        *
        * Remove the state cookie
        */
        function deleteCookie() {
            saveCookie('', { expires: -1 });
        };

        /*
        * loadCookie
        *
        * Get data from the cookie and USE IT to loadState
        */
        function loadCookie(opts) {
            var o = getCookie(opts); // READ the cookie
            if (o) {
                state.cookie = $.extend({}, o); // SET state.cookie
                loadState(o); // LOAD the retrieved state
            }
            return o;
        };

        /*
        * loadState
        *
        * Update layout options from the cookie, if one exists
        */
        function loadState(opts) {
            $.extend(true, options, opts); // update layout options
        };

        /*
        * getState
        *
        * Get the *current layout state* and return it as a hash
        */
        function getState(keys) {
            var 
			data = {}
		, alt = { isClosed: 'initClosed', isHidden: 'initHidden' }
		, pair, pane, key, val
		;
            if (!keys) keys = options.cookie.keys; // if called by user
            if ($.isArray(keys)) keys = keys.join(",");
            // convert keys to an array and change delimiters from '__' to '.'
            keys = keys.replace(/__/g, ".").split(',');
            // loop keys and create a data hash
            for (var i = 0, n = keys.length; i < n; i++) {
                pair = keys[i].split(".");
                pane = pair[0];
                key = pair[1];
                if (_c.allPanes.indexOf(pane) < 0) continue; // bad pane!
                val = state[pane][key];
                if (val == undefined) continue;
                if (key == "isClosed" && state[pane]["isSliding"])
                    val = true; // if sliding, then *really* isClosed
                (data[pane] || (data[pane] = {}))[alt[key] ? alt[key] : key] = val;
            }
            return data;
        };

        /*
        * encodeJSON
        *
        * Stringify a JSON hash so can save in a cookie or db-field
        */
        function encodeJSON(JSON) {
            return parse(JSON);
            function parse(h) {
                var D = [], i = 0, k, v, t; // k = key, v = value
                for (k in h) {
                    v = h[k];
                    t = typeof v;
                    if (t == 'string')		// STRING - add quotes
                        v = '"' + v + '"';
                    else if (t == 'object')	// SUB-KEY - recurse into it
                        v = parse(v);
                    D[i++] = '"' + k + '":' + v;
                }
                return "{" + D.join(",") + "}";
            };
        };

        /*
        * decodeJSON
        *
        * Convert stringified JSON back to a hash object
        */
        function decodeJSON(str) {
            try { return window["eval"]("(" + str + ")") || {}; }
            catch (e) { return {}; }
        };


        /*
        * #####################
        * CREATE/RETURN LAYOUT
        * #####################
        */

        // validate the container
        if (!$(this).length) {
            alert(lang.errContainerMissing);
            return {};
        };

        // init global vars
        var 
		$Container = $(this) // Container element
	, $Ps = {} // Panes x5	- set in initPanes()
	, $Cs = {} // Content x5	- set in initPanes()
	, $Rs = {} // Resizers x4	- set in initHandles()
	, $Ts = {} // Togglers x4	- set in initHandles()
        //	aliases for code brevity
	, sC = state.container // alias for easy access to 'container dimensions'
	, sID = state.id // alias for unique layout ID/namespace - eg: "layout435"
	;

        // return object pointers to expose data & option Properties, and primary action Methods
        var Instance = {
            options: options			// property - options hash
	, state: state			// property - dimensions hash
	, container: $Container		// property - object pointers for layout container
	, panes: $Ps				// property - object pointers for ALL Panes: panes.north, panes.center
	, resizers: $Rs				// property - object pointers for ALL Resizers, eg: resizers.north
	, togglers: $Ts				// property - object pointers for ALL Togglers, eg: togglers.north
	, toggle: toggle			// method - pass a 'pane' ("north", "west", etc)
	, open: open			// method - ditto
	, close: close			// method - ditto
	, hide: hide			// method - ditto
	, show: show			// method - ditto
	, resizeContent: sizeContent		// method - ditto - DEPRICATED - "resize" is inconsistent
	, sizeContent: sizeContent		// method - pass a 'pane'
	, sizePane: manualSizePane	// method - pass a 'pane' AND an 'outer-size' in pixels or percent, or 'auto'
	, swapPanes: swapPanes		// method - pass TWO 'panes' - will swap them
	, resizeAll: resizeAll		// method - no parameters
	, destroy: destroy			// method - no parameters
	, setSizeLimits: setSizeLimits	// method - pass a 'pane' - update state min/max data
	, bindButton: bindButton		// utility - pass element selector, 'action' and 'pane' (E, "toggle", "west")
	, addToggleBtn: addToggleBtn	// utility - pass element selector and 'pane' (E, "west")
	, addOpenBtn: addOpenBtn		// utility - ditto
	, addCloseBtn: addCloseBtn		// utility - ditto
	, addPinBtn: addPinBtn		// utility - ditto
	, allowOverflow: allowOverflow	// utility - pass calling element (this)
	, resetOverflow: resetOverflow	// utility - ditto
	, encodeJSON: encodeJSON		// method - pass a JSON object
	, decodeJSON: decodeJSON		// method - pass a string of encoded JSON
	, getState: getState		// method - returns hash of current layout-state
	, getCookie: getCookie		// method - update options from cookie - returns hash of cookie data
	, saveCookie: saveCookie		// method - optionally pass keys-list and cookie-options (hash)
	, deleteCookie: deleteCookie	// method
	, loadCookie: loadCookie		// method - update options from cookie - returns hash of cookie data
	, loadState: loadState		// method - pass a hash of state to use to update options
	, cssWidth: cssW			// utility - pass element and target outerWidth
	, cssHeight: cssH			// utility - ditto
	, isMouseOver: isMouseOver		// utility - pass any element OR 'pane' - returns true or false

            //	TODO: REMOVE THESE METHODS - for debugging only
	, getElemDims: getElemDims
	, calcNewCenterPaneDims: calcNewCenterPaneDims

        };

        // create the border layout NOW
        create();

        // return the Instance object
        return Instance;

    }
})(jQuery);